Why Saying “I Don’t Know” Is a Sign of Strength

I had no idea that saying I don't know is a sign of strength.

There was a woman I used to know who always had an answer. Every question that floated across a table, she caught it before it landed. Smooth. Certain. Never a flicker of hesitation. I used to watch her and think: that is what confidence looks like.

It took me an embarrassingly long time to notice she was wrong a lot of the time. And longer still to understand why that kind of performed certainty was actually costing her — and all of us watching — something important.

Why We Learned to Fake It

From the time we were small, silence got punished. Blank test answers earned red marks. Admitting you didn't know something in a meeting could make you feel suddenly, uncomfortably visible in the worst possible way. So we learned to fill the gaps. An opinion where there was none. A confident nod when we were actually guessing. A quick, polished answer instead of the honest, slower one.

After enough years of this, performing certainty becomes automatic. We stop even noticing we're doing it. And why wouldn't we? It works — at least in the short term. You look competent. You feel in control. Nobody asks any uncomfortable follow-up questions.

But here's what I've learned after years of watching this — both in my own life and in the lives of women I've been privileged to sit with through their hardest seasons: the performance always catches up with you. Always.

The Real Cost of Performing Certainty

When you commit to a position you're not actually sure about, you've now got something to defend. Every new piece of information that challenges your answer becomes a threat rather than a gift. You stop listening openly. You start listening for ammunition.

And the conversations — the ones that could have gone somewhere genuinely interesting — turn into little quiet competitions where the only goal is not to lose.

“The moment you stop pretending to have an answer, you can actually start looking for one.”

I've been in enough of those conversations to know how exhausting they are. And I've been on the other side of them too — sitting across from someone who is clearly, visibly holding a position by sheer force of will, and feeling the warmth drain right out of the room.

The same thing happens inside us. When we're working so hard to not not-know something, we've actually closed the door to curiosity. And curiosity is where everything good lives. It's where real learning starts. It's where connection happens. It's where, honestly, the best version of most conversations are waiting.

If you've ever found yourself white-knuckling your way through a transition — a divorce, an empty nest, a career that suddenly doesn't fit — you probably know this particular flavor of exhaustion intimately. That desperate scrambling to appear like you have a plan when you're actually just standing in the wreckage, squinting. We've explored that territory in depth in the post on overcoming anxiety when you're starting over after 50. But the performed certainty? That one is its own separate, sneaky kind of tired.

What Happens When You Actually Say I Don't Know

Here's what I've noticed — and what the research on intellectual humility backs up — when someone is willing to say “I don't know,” something shifts in the room. The pressure drops. There's nothing left to defend. The conversation can go somewhere honest.

Other people open up, too. Because they feel less judged. Less like they need to perform their own certainty back at you. Something relaxes. And in that relaxed space, something real can actually get said.

There is also something quietly clarifying about saying it out loud. The minute you stop pretending to have an answer, you can actually start looking for one. You can be curious again. And my goodness, there is something about genuine curiosity that feels like finally taking a deep breath after holding it for too long.

None of this means you hedge everything or refuse to take a position. Thoughtful people have views. They make decisions. They stand behind their reasoning. The point isn't to become someone who knows nothing — it's to be honest about the line between what you actually understand and what you're guessing at. Even when that honesty is inconvenient.

Over time, people learn fairly quickly whether someone is performing knowledge or actually has it. Performances get sniffed out, even when they're convincing in the moment. The person who regularly claims certainty they don't have becomes someone whose confidence gets quietly discounted. The person who says what they actually know, and stops there, becomes someone people listen to — really listen to. There's a whole category of posts on building that kind of quiet, real confidence over on the Tools to Thrive Today blog, if you want to keep exploring this.

You Don't Have to Have It Figured Out

The people who are genuinely worth listening to tend to be the clearest about what they don't know. That clarity is part of what makes the rest of what they say trustworthy.

Saying “I don't know” is not a retreat. It's not a weakness. Sometimes — maybe most of the time — it's simply the most honest, most useful, most brave thing you can offer.

If you're sitting with questions right now — about who you are, what comes next, how to trust yourself again after a season that shook you — you might find some company over in The Thrive Hive. It's full of women who are not pretending to have it all figured out. They're just honest about where they are. And it turns out, that honesty is the thing that makes it worth showing up. ☕💚

Frequently Asked Questions

You're Not the Only One Asking

Why is admitting “I don't know” so hard for so many people?

Most of us grew up in environments where not knowing was associated with failure — at school, at work, in social settings. Over time, performing certainty becomes a reflex. The good news is that it's a habit, not a personality trait, which means it can change.

Is saying “I don't know” a sign of weakness or low confidence?

The opposite, actually. Saying “I don't know” is a sign of intellectual honesty and real self-awareness. Research on intellectual humility — a quality strongly linked to trustworthiness and leadership — consistently shows that the willingness to acknowledge the limits of your knowledge is a mark of genuine strength, not a gap in it.

How can I start being more comfortable saying “I don't know”?

Start small and low-stakes. Practice it in conversations where the answer doesn't really matter. Notice what happens — how people respond, how you feel. Most people find that the reaction is far warmer and more respectful than they expected. Pairing this with a journaling practice — like the one outlined in our post on journaling for goal setting and real confidence — can help you get clearer on what you actually know, so it feels less frightening to name what you don't.

What's the difference between healthy uncertainty and just not having enough information?

Healthy uncertainty is honest: you've thought about something, you have some information, and you're clear about the limits of what you know. Not having enough information is often a starting point — and it's a perfectly good reason to say “I don't know yet” while you go look for more. Both are far better than guessing confidently.

Can saying “I don't know” actually build trust in relationships?

Yes — and it tends to happen faster than people expect. When you're honest about your limits, people relax. They feel less judged and less like they need to perform certainty back at you. That creates the kind of openness where real conversation — and real connection — actually happens. If you're navigating a major transition and wondering how to rebuild trust in yourself or others, you might also find it helpful to read about 

Yes — and it tends to happen faster than people expect. When you're honest about your limits, people relax. That creates the kind of openness where real conversation — and real connection — actually happens. If you're navigating a major transition and finding yourself second-guessing everything you thought you knew about yourself, you might also want to read about overcoming the anxiety that comes with starting over. You're not broken. You're just honest. That's actually a great starting place.