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People share the 15 'subtle' signs that someone is incredibly smart

They're perfectly happy to admit when they don't know something."

via United States Library of Congress's Prints and Photographs division/Wikimedia Commons

Albert Einstein receiving his U.S. citizenship.

Have you ever been to a party and run into someone new, only to immediately think that they have above-average intelligence? They probably didn’t begin to explain the theory of relativity or delve into the differences between Keynesian and Austrian economics, but you knew that they were very intelligent. What was it that made you realize they were incredibly smart?

It was probably the attitude they had about learning new information and the care they took in ensuring that, while in conversation, their answers were thoughtful and they didn’t just talk to hear themselves talk. There was probably something very intentional about how they approached the conversation.

A Redditor recently asked the ProductivityCafe subforum, “What’s a subtle sign that someone is very intelligent?” and people shared the characteristics they believe highly intelligent individuals possess. Ultimately, the commenters believe that highly intelligent individuals are curious, exhibit great cognitive flexibility, and have no problem admitting when they don’t know something or if they are wrong.

smart people, library, books, two women, tablet, intelligenceA woman reviewing information on a tablet.via Canva/Photos


Here are 15 ‘subtle’ signs that someone is very intelligent

1. They admit when they don't know something

"They're perfectly happy to admit when they don't know something. They see it as an opportunity to learn more and not as socially embarrassing."

"To brag a lot and toot my own horn, I’m an engineer at NASA. There is little to no pride in knowing things from my peers. We all genuinely enjoy learning and are often happy to be proven wrong. And everyone in our group can explain complex things elegantly and simply. I hope I’m do both of those things, and strive to."

2. They make things easy to understand

"They can explain complicated things in a way that breaks it down and makes it easy to understand for those not 'in-the-know.'"

"This is probably the best answer. If you can explain physics, math, interpersonal tumult in a way that a younger person can understand, that’s true intelligence. Passing of knowledge without condescension is my goal at least."


smart people, intelligence, professors, math, math teacher, man with glasses.A math professor.via Canva/Photos

3. They know what they don't know

"I work with some legitimately brilliant doctors. They will ALWAYS defer to another specialist’s opinion on an area that isn’t their specialty, often saying they’ll refer to someone smarter than them. The more someone knows, the more they realise how much they don’t know."

4. They are open-minded

"And will change their opinion when presented with new information. Stupid people just double down."

"A wise person has more questions than they have answers."

5. They follow the data

"An intelligent person will not box themselves into a position they can't change, because an intelligent person will pivot the moment they realize they're wrong. A person of lesser intelligence will call that "flip-flopping" but it's really following the data."

6. They don't take sides until they know they are right

"This makes me think of something a math professor said to a class I was in, rough paraphrase from memory: 'You know, grids are a lot like arguments; Sides are for polygons, not arguments. Arguments have no shape, so the only useful reference is what position you're taking in relation to the argument. Same with grids!' That guy had so many strangely useful little nuggets like that he'd just lead off with to engage people and help them understand that math is just about numbers and number-rules. He'd argue if you know what to do at all times, math isn't hard... it's just complicated."


7. They're good listeners

"They’re a good listener, and remember what they heard from the speaker. Also, they’re discriminating in who they listen to."

"Discriminating who you listen to is hard when you’re younger, I feel like. I’m only 28, but picking whose opinion I value is so much easier now than it was five years ago."

8. They're funny

"Not every smart person can be witty, but a witty person is smart for sure."

"I think this point often gets lost. I've never met a really funny person who wasn't also very smart."

9. It's all in the eyes

"The eyes. There is a special glare when you are speaking or listening to an intelligent person that is just not there when intelligence is lacking."

"I feel like this is what I lack, and people can tell. Can’t show this when you have social anxiety and can’t focus!"

10. They change their minds

"Cognitive flexibility. They take nothing as irrefutable and can change their mind when presents with new facts. Clarity and easy comprehension of new information."

"This is the basis for Bayes' theorem, when presented with new plausible evidence, existence beliefs should be updated."

professor, crazy hair, white hair, lab coat, professorA professor writing on a black board.via Canva/Photos

11. They ask great questions

"They ask amazingly insightful questions."

12. They have elegant solutions

"I really see lots of answers depending on subjective perception and personal experiences with probably smart people... It's really about their world they live in not yours. There are rarely any common signs among any two smart people. But I'd say the two main hints are they can explain complicated stuff in far simpler terms and they can come up with good solutions to almost any problem they have adequate knowledge about. Being social depends a lot on your youth and how people treated you. Most "stupid" people are threatened by intelligence and bully those who are intelligent."

13. They can discuss controversial topics without getting riled up

"They know how to have a mature, adult conversation when it comes to personal differences with people (as opposed to the usual defensive, denying, and deflective bullshit where the person you're trying to communicate with doesn't hear a word you say)."
"Being able to see both sides of an argument or political issue without having their mind clouded by propaganda or bias. Also, changing their mind about such things when presented with different facts."

14. They don't blindly follow a party

"When they don't blindly align with one political party over the other and instead focus on actual issues."

"Yes. And this includes anarchists and libertarians. When will people quit feeling the need to put themselves in a box politically?"

15. They think before they speak

"They think before they speak, some of the most intelligent people I’ve known haven’t spoken on impulse, they’ve always thought their words through carefully."

5 things people think show stupidity but are actually intelligence

There are some people that are just inherently intelligent while others have to work at it. As we age we run into more people that have varying degrees of intelligence whether it be from post graduate degrees or just life experiences. But there are sometimes instances where we may find ourselves questioning if someone is as smart as they are letting on.

It can be due to something they said, did or just from observing their general behaviors. Is this always a fair assessment though or are we making snap judgements based on what we personally perceive as markers of a person's intelligence? Well, it seems this is a question that has been on the minds of a few individuals.

People have been asking what are signs of intelligence that are often mistaken for stupidity. The answers just might surprise you.


Knowing what people view as signs of intelligence may also serve as a means to satisfy people's curiosity on whether they appear to be smart to other people. This could be a reason this question is so popular when someone dares to release the thought into the metaphorical void of the internet. Between two posts, one shared on Reddit and the other on X, here are the top 5 things people mistake for ignorance but are actually signs of intelligence.

Confused Dogs GIF by MOODMANGiphy

1. Asking questions

Sometimes people mistake asking a lot of questions as a sign of unintelligence when the opposite may be true. People who are smart know when they aren't well informed on a topic so they don't shy away from asking questions to gain clarity or to learn about resources to obtain more information on the topic.

"Asking questions. people love to act like it makes you look dumb, but honestly, the smartest ppl are the ones who aren’t afraid to admit they don’t know everything. Like, if you’re always questioning stuff, you’re actually trying to learn, while everyone else is just faking it lol," someone shares.


Amy Poehler Question GIF by NBCGiphy

2. Being quiet

It seems that the consensus is that everything doesn't require one's opinion, especially if they aren't well versed in the area being discussed. Quietly listening instead of interjecting can also show confidence in your knowledge of the topic at hand. If it's being adequately covered by others in the conversation, your voice may not be needed–knowing the difference seems to be key in someone deemed as intelligent.

Being quiet also gives you the opportunity to learn about others, another user points out, "That phrase as well as 'You have two ears and one mouth. Use them in that ratio.' Ring through my head regularly. These days, far more about others than to myself."

3. Mispronouncing a word

This may be surprising to some people but mispronouncing words can be seen as a sign of intelligence. The logic behind this is that you must be hitting the books more than engaging in mindless scrolling or consuming some other form of visual media outside of books.

"Mispronouncing a word. Just means that you have read the word somewhere and have not heard it," someone points out in a reply on X.

Elon Musk Snl GIF by Saturday Night LiveGiphy

4. Having an accent

There's oftentimes a misconception that people who don't speak the dominant language well or speak it with an accent are not as intelligent. This can be immigrants who have moved to the country or people simply visiting on vacation. In some situations immigrants hold advanced degrees or owned businesses in their home countries before relocating, which alone is impressive but one person adds this reminder.

"Having an accent seems to make people think you’re stupid. Reality is this person speaks more than one language, they’re not dumb."

5. Changing your mind

Some people see changing your mind as a sign of being uncertain or fickle but in actuality, it can be a sign of intelligence. When someone learns new information that conflicts with previous information and adjusts accordingly, this is seen as a positive attribute. For others, the changing of one's mind may be seen as something someone unintelligent would do.

Someone chimes in saying, "the uneducated call it flip-flopping, while some of us are willing to change our views in light of new evidence." While another clarified that they view "flip-flopping" differently, "I would only call it flip-flopping if they publicly change back and forth multiple times. I think this is often because they're trying to appeal to whomever they're speaking to rather than showing their true opinions."

Changed My Mind Hbo GIF by SuccessionHBOGiphy

Intelligence can be measured by many different standards and there's no true way for someone to immediately pick up on someone else's level of intelligence in all areas. Some people are well versed in certain topics while being clueless in another. Intelligence runs the gambit because no two people are exactly alike and no singular person can know everything with the depth of expert level research.