What Each Introverted Myers-Briggs® Personality Type is Skeptical Of

When people hear the word “skeptical,” they usually picture someone questioning every claim, being pedantic, and asking for sources. But after working with people of all 16 personality types, I don’t think skepticism belongs to any one type. Everyone has things they’re reluctant to trust. The difference is what sets off their internal alarm.

An INTP may question whether your argument makes sense. An ISFP may be less interested in debating your logic but immediately notice that you don’t seem sincere. An ISTJ may want proof that your brilliant new plan has ever worked outside your imagination.

So today we’re looking at the eight introverted Myers-Briggs® personality types and what each one is most likely to question.

Understanding this can explain why something that sounds perfectly convincing to you gets nowhere with someone else. You may be offering facts when they’re questioning your motives, or offering reassurance when what they really want is a workable plan.

Not sure what your personality type is? You can always take our questionnaire to find out!

Estimated reading time: 14 minutes

What Each Introverted Myers-Briggs® Personality Type is Skeptical Of

The INTP

Of course I have to start with the INTPs, because they’re skeptical about pretty much everything. Why? Let’s thank their Introverted Thinking side for that, paired with a process called Extraverted Intuition.

INTPs have a constant need for logical consistency and coherency. Logical fallacies are anathema to them, and they’ll easily pick out any inconsistencies in an argument. This is why they’re often viewed as the “devil’s advocate” or the “eternal skeptic.”

However, INTPs also have a side that craves new ideas and perspectives – Extraverted Intuition plays a major role here. They love exploring different possibilities and theories, finding connections that might surprise most other people. To them everything is connected, and everything can be explored or understood in 12 or more different ways.

Because of this, INTPs are especially skeptical of:

• Emotion-based decisions and feelings
• Narrow-minded judgments
• Quick decisions
• Black-and-white perspectives
• Faith-based conclusions or judgments
• Judgments based on personal-experience or tradition
• Conclusions that lack factual basis
• Reading things at face value

I mean, we could probably add more to this list. INTPs, drop me a comment and let me know what should be added because I know I haven’t covered it all!

Find out more about INTPs: The Top 35 Favorite INTP Movies

The INFP

INFPs are no strangers to the depths of internal questioning. While they may not spend a lot of time arguing about the semantics of someone’s words or evaluating logical fallacies in an argument, they’re keenly aware of hypocrisy. A lot of this comes from Introverted Feeling, their dominant mental process. Fi keeps checking inside: Is this what I really believe? Is this feeling telling me something important? Am I living in a way that matches my values? INFPs don’t take their first emotional reaction as the whole story. They want to know what’s underneath it.

In my experience working with INFPs, this can make them far more self-questioning than people realize. They may look accepting and easygoing from the outside while privately examining their motives, choices, and integrity from six different angles. Socrates’ line, “The unexamined life is not worth living,” fits them pretty well, although an INFP might add that the dishonest life isn’t worth living either.

INFPs also use Extraverted Intuition, or Ne. This is the part of them that spots connections between ideas, experiences, stories, and seemingly random details. One thought leads to another, which leads to a memory, which opens up an entirely different way of looking at the issue. Things rarely feel isolated or meaningless to them.

That’s one reason many INFPs resist snap judgments. They can usually imagine another explanation, another perspective, or some piece of the story that hasn’t come out yet. Narrow-minded certainty tends to bother them, especially when someone decides who another person is without taking the time to understand them. They would rather keep exploring than close the case too early.

Naturally then, INFPs are skeptical of:

• Judgments that don’t consider personal context
• Decisions made without empathy
• Black-and-white thinking
• Traditions or norms that stifle individuality or creativity
• Any form of intolerance or close-mindedness
• Quick fixes or superficial solutions to deep issues
• Criticism that lacks constructive intent or understanding

You might also like: 21 Songs That INFPs Will Relate To

The INTJ

INTJs are called the Strategists, and they’ve earned that nickname. If you’re not analytical I wouldn’t volunteer to play Risk against one. They’re usually thinking several moves ahead while everyone else is still deciding where to put their tiny plastic armies.

As Introverted Intuitives, INTJs look for patterns, ripple effects, and the larger meaning behind what’s happening. They’re rarely interested in a fact as just a fact. They want to know where it leads, what it connects to, and what it might mean six months from now. Then their Extraverted Thinking steps in and asks, All right, how do we actually use this? What resources do we have? What’s the most efficient way to get where we’re going?

This combination can make INTJs unusually good at predicting outcomes and planning ahead. It can also make them skeptical of decisions based mostly on feelings, tradition, or keeping everyone comfortable. “We’ve always done it this way” is not a convincing argument to an INTJ. Neither is “But people might not like it.”

I’ve also noticed that many INTJs are genuinely interested in spiritual questions, even if they struggle with organized religion. They may want to believe there’s something larger going on, but they have a hard time overlooking contradictions or accepting claims without enough evidence. They’re likely to examine a belief system from every angle, argue with parts of it in their head, and keep digging long after someone else has decided to take it on faith.

Because of these combined qualities, INTJs are skeptical of:

• Emotional displays that seem manipulative or overly dramatic
• Arguments based solely on popular opinion or social consensus
• Decisions made without a logical or empirical foundation
• Short-term solutions that fail to consider long-term impacts
• Ideas that lack innovative thinking or are bound by traditional methods
• People who avoid taking responsibility for their actions or blame external factors for their problems
• Strategies that ignore underlying systemic issues or patterns

Find out more about INTJs: Why INTJs Struggle with Loneliness (and How to Cope)

The INFJ

INFJs try to balance skepticism with an awareness that not all things can be explained empirically. Their dominant function, Introverted Intuition, gives them the power to notice hidden patterns and meanings in the world around them.

More than what’s on the surface, the INFJ is asking, “What does this all mean?”

Joel Mark-Witt and Antonia Dodge from the Personality Hacker podcast describe this well: “The number of different patterns inside of us is only limited by the number of humans on the planet. But there are patterns to these patterns, and the Perspectives user (INFJ or INTJ) naturally enjoys digging into the different ways people interpret reality.”

This ability to perspective-shift and search for meaning helps INFJs to read between-the-lines, understand unsaid emotions, and gain insight into the inner workings of people’s minds.

What tends to set INFJs apart is the way they combine intuition with empathy. They’re good at picking up on what someone is feeling, even when that person hasn’t explained it very well. A change in tone, an odd pause, or something that doesn’t quite match can tell them a lot.

I’ve also met plenty of INFJs who are good at stepping outside their own perspective and trying to see the situation through someone else’s eyes. That doesn’t mean they always agree, of course. It means they want to understand where the person is coming from and what might be driving their behavior.

This may explain why so many INFJs are drawn to counseling, ministry, teaching, advocacy, and other roles where people need to feel understood. Their intuition helps them look beneath the surface, while their empathy keeps the focus on the actual human being involved. Together, those strengths can help INFJs make sense of their own inner lives while also getting a surprisingly accurate read on what motivates other people.

Given their deep empathy and intuitive insight, INFJs are inherently skeptical of:

• Actions and decisions that disregard the potential emotional impact on others
• Surface-level interpretations
• Social structures or policies that seem inconsiderate of the individual’s unique circumstances
• Rigid thinking or solutions that fail to address the root cause of problems
• Quick decisions without time for contemplation
• Judgments that don’t make room for abstract considerations (i.e. “I only trust what I can see, hear, touch, smell, so everything outside of that is wrong!”)

Discover more about INFJs: 10 Extremely Annoying INFJ Pet Peeves

The ISTP

ISTPs have a very practical kind of curiosity. They want to know how things work, preferably by taking them apart, experimenting with them, or watching what happens when they change one small piece. For some ISTPs this looks like working with tools and mechanics, for others it looks like understanding psychology or even the way to bake bread with precision. If you want to find out more about the ISTP brain, you can do that here.

ISTPs are the sort of people who might not only play the piano, but also know how to tune it, repair it, and possibly rig it to play by itself if you leave them alone with enough tools. Obviously, not every ISTP plays the piano, but you get the idea.

ISTPs are natural questioners. They tend to trust what they can observe and verify for themselves, but they also know reality is more complicated than whatever is directly in front of them. As children, many become expert hairsplitters. If a rule sounds inconsistent or an adult’s reasoning doesn’t add up, they will find the weak spot and keep arguing it with the stamina of a defense attorney who has nowhere else to be.

Like INTPs, ISTPs are quick to notice holes in an argument. Emotional manipulation, sweeping generalizations, and dramatic “If we allow this, civilization will collapse by Tuesday” predictions usually don’t work well on them. They know they’ll never have every answer, but they’re still going to keep investigating, testing, and trying to make sense of how the whole thing works.

Because of their nature, ISTPs tend to be skeptical of:

• People who make hasty decisions without considering the facts or evidence
• Emotionally-charged judgments or decisions
• Ideologies that reject practical, real-world applicability in favor of abstract principles
• Black-and-white thinking that ignores the nuances and grey areas of complex issues
• Judgments based purely on someone’s life experience or traditions
• Religious beliefs that seem to have logical inconsistencies or little real-world proof
• Assertions made without firsthand experience or solid proof to back them up

Find out more about ISTPs: 10 Things That ISTPs Look for in a Relationship

The ISFP

I like to call ISFPs the Virtuosos because nearly every ISFP I’ve known has some creative skill they’ve mastered, or are determined to master. It might be music, photography, cooking, fashion, woodworking, or something you’d never guess until they casually reveal they’re excellent at it. I’m not jealous….or am I?

ISFPs are realists with a deep, passionate inner world. They may not spend much time hunting for logical fallacies, but they’re usually good at noticing phoniness, manipulation, or forced sincerity. They don’t necessarily tell everyone what they’re thinking, either. They tend to watch first and decide whether someone feels genuine. They’re not infallible human lie detectors, but trying to fake sincerity around them is still a risky hobby

I think of ISFPs as the cats of the Myers-Briggs world. They may hang back and study you before deciding whether you’re safe. Try too hard to impress them and you’ll probably make matters worse. But once an ISFP trusts someone, their loyalty runs really deep.

ISFPs also notice when people’s actions don’t match their words. Someone can say all the right things, but if their behavior tells another story, the ISFP is likely to believe the behavior. Many enjoy exploring spiritual ideas, symbolism, or unusual concepts, but they still tend to appreciate people who can stay grounded and deal with life as it actually is.

Given their unique blend of traits, ISFPs tend to be skeptical of:

• People who make broad generalizations about others without appreciating their individual nuances.
• Decisions that fail to consider personal values, seeming shallow or misguided as a result.
• Solutions or ideas that lack practical grounding or realism
• Emotional expressions that appear exaggerated or performative
• Ideologies or systems that enforce conformity, stifling personal expression and individuality

You might also enjoy: How ISFPs Say “I Love You”

The ISFJ

ISFJs aren’t usually the first type people picture when they hear “skeptic.” My ISFJ son isn’t roaming the house looking for debates, but that doesn’t mean he accepts every explanation he’s given. If something contradicts what he knows from experience, or a rule feels unfair to someone, the questions start coming.

That’s something I think people miss about ISFJs. Their desire to keep the peace can hide how much analysis is happening underneath.

ISFJs like a life that’s calm and routined, and a perspective that seems grounded. They like a stable, consistent life, and warm, harmonious relationships. They care about getting people’s needs met, in either emotional or practical ways. Helping out in their communities, having a dependable lifestyle, these are all things that deeply matter to them.

Because of their grounded, conscientious nature, ISFJs tend to be skeptical of:

• Trends or fads that encourage spontaneous or risky behavior
• Decisions or judgments that don’t take others’ needs and emotions into account
• Proposals that lack a clear, practical plan for implementation
• People that exhibit inconsistency or unreliable behavior
• Ideas or movements that disregard the importance of tradition and history
• Overly abstract or theoretical concepts that seem disconnected from real-world applications

Discover more about ISFJs: 24 Signs That You’re an ISFJ, the Protector Personality Type

The ISTJ

ISTJs may not challenge every strange idea out loud. Sometimes they’ll let you finish explaining your revolutionary new system before asking the one painfully practical question that makes the whole thing collapse.

They tend to trust what has been tested, observed, or proven over time. This isn’t necessarily because they hate change. Usually, they want to know whether the change will actually improve anything, who will be responsible for carrying it out, and what happens when the exciting part is over.

ISTJs view the world through a lens of past experience and history. They save wisdom from the past in order to create a more stable and secure future. They’re also pragmatists, organizing and structuring their world in a way that makes sense logically. They believe in approaching life with a calm, cool-headed perspective, and are known for their reliability and dependability.

Given their practical, no-nonsense nature, ISTJs tend to be skeptical of:

• Wild or impulsive behavior that disregards consequences
• Decisions made without considering past experiences
• Concepts or ideas that lack real-world applicability or evidence to support them
• Emotional reactions that seem out-of-proportion or irrational
• Changes to traditions or routines without a solid reason for doing so
• Theoretical concepts or philosophies that seem disconnected from practical reality.

You might also like: 10 Things That Excite the ISTJ Personality Type

What Are Your Thoughts?

Did you relate to what I wrote about your type, or do you have a different opinion? Let me and other readers know in the comments!

Find out more about your personality type in our eBooks, Discovering You: Unlocking the Power of Personality Type,  The INFJ – Understanding the Mystic, The INTJ – Understanding the Strategist, and The INFP – Understanding the Dreamer. You can also connect with me via Facebook, Instagram, or Twitter!

References:

Personality Hacker: Harness the power of your personality type to transform your work, relationships and life by Joel Mark-Witt and Antonia Dodge (Ulysses Press, 2018)

I’m Not Crazy, I’m Just Not You by Roger R. Pearman & Sarah C. Albritton (Nicholas Brealey Publishing, 2010)