8th Function of Each Type

Ti in INFPs and ISFPs

The initial impression people have of this person is of someone who is a stoic, discerning, fair, and unanimated person—even cold and aloof. They initially appear to have sound, cool-headed rational judgment.

As introverted judging functions, Ti complements Fi. Fi internally tries to feel things out, and then Ti comes in to give these convictions a structure in which to express themselves. This gives the impression of somewhat carefully evaluating things in a very internal way. The IFP tries to be objective about things.

This impression dissipates over time, and when you hang out with them, as they become warmer but also emotionally tumultuous inside. It becomes more and more apparent they throw logic out the window whenever they want to, seeing it as “optional”. They actually want to do things when they feel like it, rather than if it makes rational sense, even if it seems “dumb” to the Ti-dominant.

When one peers closer, one can see that the motivation for the ideas is not deductive logic, but ethics that are felt. The main basis these ideas is not Ti. These feelings are dressed up in a reasoning voice. They feel the truth, and though they provide initial explanations, if pressed further they will say such a truth cannot ultimately be explained or logically structured.

When they speak, they take the time to analyze things carefully and explain concepts to others, breaking these concepts down. They clarify ideas and connect the dots of the overall system on their own, drawing logical links between them. In the service the group, these types make a particular effort to be fair to each person, and to create a framework by which the group can work by.

They can kind of go overboard, over-analyzing and evaluating their environment and circumstances, and breaking it all down into small inconsequential pieces. As a result, they will speak in a somewhat bookish, academic, monotone way.

They may attract ENJs who are often seeking Ti-clarity behind their thoughts. They may also attract IFJs—even though Ti is of similar strength, the IFP tendency is use it in the presence of others and consciously work the function gives it the appearance of strength.

IFPs may enjoy hobbies that engage their analytical bent. However, they do not see the world as fundamentally being describable by Ti structure, and dislike the idea.

When you compare IFPs with EFPs, the strength of Ti in IFPs becomes apparent. EFPs will immediately reject information presented analytically that “seems cold” whereas the IFP will chew on this information for longer. EFPs have much more problems with internal structuring, and may even be helped by IFPs in this regard.

Te in ESFJs and ENFJs

These types make a special effort to be resourceful, and the initial impression people have is these types is how useful they can be as they help others. As extroverted judging functions, Te is the natural complement to Fe. To be in the world of people and have social connections means that one needs to be incredibly resourceful, and useful to the people in their networks. This helps maintain and expand their network and influence.

EFJs can seem like they consume books for breakfast. They will find all sorts of facts and tidbits of information, particularly those that can be of use to others, and can even go overboard and rattle them off.

The role that EFJs play for the group is Te. They will also have business logic, and be able to direct people logistically, especially in regards to getting people to meet up or when hosting. They will lay out the steps that need to be done to accomplish this or that. When presenting to the group, they sometimes manage to look business official. They appear like an authority figure, the go-to person.

This impression of the EFJ is furthered by the fact Fi is their ignored 5th function, making it appear they are sacrificing personal sentiment in order to meet the objective demands of the outside world.

This impression dissipates overtime when you hang out with them. Then you can see they are much more focused on people-relations, and fundamentally do not see getting business done as the ultimate aim and will sacrifice this for the sake of the harmony of the group. As a result, they may not get work done, getting carried away by conversations and their emotions.

Despite the initial appearance of being serious about business matters, it is hard for them to look this way for long. Ultimately, EFJs have trouble being taken seriously due to the propensity to act silly, gossip, and having tumultuous emotions that are vented out to others.

The ability to absorb outside data and be organizational may attract IFPs, who are seeking external structure. They may even attract EFPs—even though Te is of similar strength EFJs use Te in the presence of others and consciously wield the function, giving it the appearance of strength.

Especially if you compare them to IFJs, EFJs are much more able to use Te, and even help their IFJs out in Te regards. IFJs have a much harder time than EFJs being taken seriously by others or trust external sources.

Fe in ESTJs and ENTJs

The impression people have of ESTJs and ENTJs is often that of a friendly, inviting, and polite person, capable of positively disposing you towards them. They will take the time to act as a good host. They think about “the group” and prioritize its needs, caring for the harmony of the group in order to make the group cohesive so that it can work effectively.

They may even over-do Fe, getting lost in never-ending conversations and doing whatever they can to maintain the group. However, their ultimate focus is on objectives, not people-relations per se.

When ETJs speak, they can have a lot of intonations in their speech, and sometimes be silly, and vent their emotions. This can come off rather strongly, even making them seem rather emotional at times. They may burst out in anger or sadness briefly. They can become rather ebullient. This impression is further intensified by the fact that the cool-headed function Ti is their ignored 5th function.

They know it is important to engage people when they speak, and also to have the appropriate feeling sentiments and the correct things to say for the right occasions. This is especially good for establishing business relations.

ETJs often act as an authoritative leader. In order to maintain this role, they need to know how to keep the group together, lighten the atmosphere, or otherwise they will lose their followers.

Then overtime you will see they will go back to being rather dry when they talk, becoming stiff and awkward with people, serious or highly goal-oriented, argumentative, and filled with indigestible facts. They set their standards high for their close circle at the expense of harmony. They have trouble understanding emotion and may have difficulty with empathy.

The strength of Fe is apparent when you place them next to an ITJ. An ITJ cannot tolerate any sort of drama to get one’s way, whereas an ETJ will tolerate drama. ETJs are better with group dynamics, which would be essential to meeting Te business concerns.

ETJs may attract Ti-dominants through the demonstration of Fe. They may even attract ETPs, because even though they have Fe of similar strength, the ETJs’ use of the function in the presence of others and the ability to consciously wield the function gives it the appearance of strength.

Se in ENFPs and ENTPs

To others ENPs can appear daring, in-the-moment, have a high sexual drive, always on-the-go with lots of energy for adventures, assertive and sometimes even brash in their actions, and make outrageous comments. ENPs can be rather impulsive and chaotic in their external behavior, does things on a whim without foresight, often getting themselves into physical danger or trouble.

This is not merely the result of Ne. Ne by itself is an intellectual function, a function of ideas, which does not have bearing in the outward physical environment. Se complements Ne as extroverted perceiving functions, as the internal chaotic flow of ideas of Ne is manifested in the outward behavior of Se. The random flight of ideas becomes a random flight of actions and impulses.

Even the outrageousness of the words of Ne-dominants implies Se. Even if this is not an action it is meant to cause a stir (a physical impact) on the environment. Some may poke and prod others tiresomely, thus may come off as obnoxious. They may allow chaos to happen with their actions, simply to quench their need for intellectual entertainment and bemusement.

The main driver of their actions is intellectual, rather than the need to take action in itself. They are drawn towards difficult challenges because of the intellectual stimulation they bring. However, they will find themselves in uncomfortable predicaments.

When the time calls for it, they can become categorical in their statements and fiercely competitive or confrontational. If the group is getting flighty and scattered they can quickly snap them into order before going back into their Ne-state. They can quickly galvanize people onto some entrepreneur vision they have, but then quickly lose their willpower to continue.

Overtime the Se impression dissipates. Se is a means for them to realize their Ne-visions—the semi-actualization of their visions allows them to see how their ideas play out. But once they feel like they figured the idea all out, they may lose track of their project.

Ne-dominants will find spontaneous action-taking to be recreationally self-fulfilling in itself, and they can be thrill seekers. But when it comes to using Se for serious matters like staking territory that is “theirs”, they will not be interested and give in, and let the other person take it.

The strength of Se is apparent when you juxtapose ENPs with INPs. INPs tend to want to act with forethought and will be irritated by the brashness of the ENPs actions, and INPs will fear that with ENPs around they will lose control of the situation. ENPs can better take in-your-face competition and aggression from others than INPs.

ENPs may attract INJs due to their role function, as INJs are half-sleepy people who need some sort of outside impetus. They may even attract ENJs, even though Se is of similar strength, as the role-nature of the function makes it appear stronger.

Ne in ESTPs and ESFPs

People will see ESTPs and ESFPs as entrepreneurial-minded, creative, as clever and quick-witted, opportunistic, willing to entertain possibilities and brainstorm, like imaginative games and playful word games, and pursuers of novel ideas. They may have many hobbies, interests, and talents.

They may initially give off the impression of being scattered goofballs or clowns. Overtime, their willpower and interest in action over mere idea-generation will become more evident. Their need for a scope of influence prevents them from acting too goofy, so as to be taken seriously and not as a mere lightweight.

The natural complement to Se is Ne: to move quickly is to think quickly. A quick wit is needed to be able to maneuver about smoothly, and outsmart the competition. ESPs are often leaders and entrepreneurs who want to act, and so they are quick to find creative ideas to use. They take swift action one needs to quickly think of possibilities and implement them.

Dario Nardi did research on ESPs and found that they are willing to brainstorm possibilities, but the more and more they do not relate to reality and are overly vague and abstract, the less interested they become.

I do observe that even when there is no imminent action to take, ESPs would enjoy simply sitting around talking about ideas and possibilities for recreational purposes, come up with random BS to say just for humor and kicks, or just to exercise the imagination. They may speak in a very witty and entertaining way. This is because doing so for recreation is not taking Ne too seriously. But to take long Ne conversations seriously as a way to solve problems or deal with matters is viewed as an empty approach.

You may find ESFPs with their rooms full of random stuff with different colors of things they bought or they made. It can be inventive and creative, decorated in a playful way. The pursuit of all this comes from an inventive mind that thinks of different possibilities, such as what to get and what to create. They often use their Ne cleverness to grab attention (Se). This idea-generation does not come from Ni, because it is quite divergent in nature.

An ESP may attract an ISJ, who seeks creativity and options to get them out of their Si stupor. They may enjoy the creative quality that the ESP has through their Ne. An ESP may even attract an ESJ. An ESP differs from an ISP because an ISP cannot tolerate uncertainty that is created by a variety of possibilities, whereas an ESP would.

Si in INTJs and INFJs

In the service of others, an INJ will try to take care of their comfort, to make them feel at ease. They will be pleasant and non-obstructive, and avoid recklessness. They also have a tendency to play it safe and be risk-adverse, and are cautious around people or new ventures.

As future planners, they will need to manage details to ensure the manifestation of their vision. They could get so caught up in the minor details they don’t get very far. They may dream about being a woman or man of action one day (Se), but feel like they need to do a lot of preparation for this such as reading and rehearsing (Si) for the next 50 years before they can start saving the day. They study the past like a scholar, collecting stuff from history (Si) so then they can start predicting trends (Ni).

It is not uncommon to hear of an INJ wanting to take on a safe occupation that has routine in it. They will take care of the routine, allowing their inner-mind to space out with all sorts of Ni thoughts.

INJs can be quite concerned about cleanliness or about their health. They will also take care of practical details and comfort for others. They will readily do chores if requested to do so, but may not do them if they are on their own. To others, they often appear tranquil or peaceful, adjusting to others.

Ni desires for an inner harmony of the spirit. However, in itself, this idea is merely abstract. Thus, to make it tangible, they will strive for an inner harmony of the body as well, even focus on a few selected sensations to concentrate on, such as while meditating. The few themes, visions, and archetypes they focus on they will envision with great detail.

Overtime the Si impression starts to lessen. Despite being bold at Si, these types are weak at it. For example, an INTJ may take on carpentry and then saw his or her arm off by accident. These types will misread things and miss details, spacing out too much. They go out-of-body while “attending” to chores. Their souls disappear when they go out for long walks.

In terms of appearance, the Si role of the INFJ will combine with their Fe auxiliary, and they will look like an ISFJ. Si-Fe will make many of them dress elegantly, taking care of little details of how they look. However their Ni will show through in some of them—even if their look is harmonious there is something subversive about it (e.g. going goth). Like ISFJs, they have a pleasing demeanor. The Si role of the INTJ will combine with their Te auxiliary, and they will look like an ISTJ. They will start to take care of functionality of the household or even do handiwork.

An INJ may attract ENPs and INPs these latter types seek comfort and people to help them relax. This is a role that an INJ can adequately play. INJs are notably more relaxed than their ENJ counterparts, who have Si PoLR.

Ni in ISTJs and ISFJs

For the sake of their inner tranquility and personal care ISJs need to be prepared. This will involve making a dry-run of the future with Ni. These types do not want to over-exert themselves in order to maintain their inner equilibrium, so they would be cautious, look ahead, not get involved in projects that would not be of benefit to them, and be selective about the future.

In order to take care of details, they need to see ahead to see what needs to be done, what needs to be remembered (such as a birthday). To ensure things that are important to them such as a security, they will look into their future, and make timely choices. They may foresee negative events, and avoid them.

Due to the bold yet weak nature of this function, they may take on an exaggerated pessimism, skepticism, doubtfulness or over-preparation. They may anticipate a negative outcome with Ni, which undermines their Ne desire for bold ideas. ISJs tend to love excitement and creativity, but Ni can get in the way. They need to be encouraged. Their Ni used confidently, but is not as well developed. They are more in-the-moment types.

The initial appearance of ISJs is not the zany, all-over-the-place idea generation of Ne—but rather of a ponderous, thoughtful and measured look of Ni in their eyes and demeanor. They will help others be prepared, and have a politeness as to not rock the boat. However, their Ne nature will come out when it is sparked, and they do indeed have bold, mischievous, easily bored way about them that wants to play.

ISJs will look and act like advisors because of their Ni quality. They will take care of or handle a future situation, such as if a group has a problem with someone the ISFJ will volunteer to speak to that person, knowing what to say.

The ISJ will seem to be a contemplative intellectual—and they may show an interest in Ni-style topics, will study things like psychodynamics, avant-garde art, or other studies that have a subversive quality to it. When looking into history, they will make sense of their detailed perceptions by drawing up trends, and speaking about them to others. They may think in terms of symbols, and frame elements of their lives in symbolic terms, which they talk about to others.

However, speaking of these hidden forces, subversive ideas, and intellectual abstraction is done recreationally. They may enjoy it to an extent because knowing of these things heightens their own sensory pleasure (such as enjoying a painting by knowing of these Ni aspects of it). However, taken too seriously they may become distrustful.

They certainly have a greater tolerance and capacity to understand these sorts of ideas compared to an ESJ, who have Ni-PoLR, and also have greater forethought than ESJs. ESJs looked more “plugged in.” ISJs may attract ESPs or ISPs due to their Ni-role—who need an element of measure to prevent them from being too aggressive or untimely.

Fi in ISTPs and INTPs

Upon first acquaintance many ISTPs and INTPs are considerably polite, cordial, and considerate of others. They act like gentlemen or ladies, and are quite respectful. They provide emotional support and understanding one-to-one. They will remember to say “please” and “thank you,” and may hold the door for everyone. They will forgive people of their weaknesses, and act as a good listener for the troubled. They will adjust to others in order to build relationships, and will find an individual approach for each person.

The bold yet weak nature of the function causes ITPs to seem excessively formal. This stiff formality is very much the domain of Fi, especially as a role function. The Ti of ITPs holds people at a distance, and the Fi helps them make sure others know that when they do so, it is not because of ill-feelings.

Fe prefers to lighten the atmosphere, to be silly and loose, create an environment where people can express themselves loosely. This is what the ITP prefers over Fi. Overtime, they start to reveal more of their inappropriate nature, and tell offensive jokes not meant to be taken personally. It turns out they are poor listeners, despite initial impression, and space out when the things people say are not relevant to their interests. They have difficulties establishing relationships.

Fi is a natural complement to Ti, as introverted judging functions. When speaking of their intellectual interests or when solving a problem for others, they will speak of how they personally relate to what they are thinking, often making a number of “I…” statements. This gives what they think a more human context.
To make their ideas relatable, they will express them with their own personal convictions and sentiments.

It also helps give their ideas a cause, so that there is a purpose behind it. When they do speak in such a way, it can put people into a spell (Jung writes this of Fi). These feelings are expressed in a somewhat subdued and measured way, which is not how Fe would express itself. Fe is more boisterous or dramatic.
At the same time, ITPs may be upset with people over minor trifles in considerateness or polite behavior.
ITPs may come across as ethical philosophers, use their logic but dress it up in personal sentiment to determine what is right and what is wrong, not merely what is correct or incorrect, and state it in a personalized tone.

This moral and personal dimension may attract ETJs and ITJs, who need conviction and personal mission behind their organizing and plans. Compared with ETPs, ITPs have a better sense of what is appropriate, and may even criticize ETPs for making offensive jokes. They have a better awareness of their own feelings, which they take the time to think about.

5 Comments on “8th Function of Each Type

  1. I enjoyed this. In fact I’m having much fun perusing your entire blog!
    Just wanted to say in regards to all 8th functions, would you say they are demonstrated as more of a “social front”? Like a way of seeming mature and it’s more fiercely demonstrated/used when stressed? For instance I’ve been mistaken as an Si dominant more than once. My mother is one… Which I think contributed very much to how I’ve conducted myself growing up but she always insisted I should be an accountant “because of my attention to detail” and while it’s true I’m very capable of noticing/refining details, is it something I actually want to spend all day doing?! Heck NO! I tried to take a class on accounting at her insistance (and did well when I made the effort) but it was completely draining to force the focus required to do it well since I’m not actually in the least bit interested.

Leave a Reply

Your email address will not be published. Required fields are marked *