Is it Rude To Tell Someone They Are Lying?

When someone tells a lie, we are more often than not rearing and ready to reply by calling them out on their lie, or flat-out calling them a liar.

But, is it rude to tell someone they are lying, even if they are obviously lying about something? And, what if it’s personal, does that change anything?

Further, does it make a difference whether they are actually lying or not?

Read on below and discover our in-depth answer to this question!

Is it Rude to Tell Someone They Are Lying?

Telling someone they are lying is a big remark, and a lot of the time a big mistake. 

But, even when the person deserves it, it’s still a bit rude to call someone a liar.

Obviously, someone who does a lot of lying is going to be known around town (or online) as a liar, so there’s really no need to call them as such.

More often than not, telling someone they are lying is seen by others as stooping down to the level of the said liar.

How Rude Is it?


On the rude meter’s scale of 1 to 10, telling someone they are lying rates 9. 

We rate telling someone they are lying relatively high on the scale because traditionally it’s one of the worst phrases you can use to bad mouth someone.

The fact is that some people lie more than others, and those people normally stand out like sore thumbs.

In other words, liars typically reveal themselves (so, you don’t necessarily need to call them out).

Why is it Rude?

Claiming and telling someone that they are lying is a tall order, and sometimes one that gets you in trouble or causes you to look and sound rude.

Knowing whether or not someone is lying is often impossible. 

Rather than knowing for sure if someone is a liar, we tend to rely on our gut feelings, or what our brain tricks us into thinking we know.

Common Questions

Is the word liar disrespectful?

The word liar itself isn’t so much disrespectful as it is just a poor choice of wording in most cases.

More often than not, there is a better word or term to use than straight-up calling someone a liar.

That said, if someone is surely lying, and there is no doubt about it, calling them a liar is par for the course.

Should you call out someone who is lying?

Whether or not you should call out someone who is lying depends on several varying factors like who you’re dealing with, what they are lying about, and how you know that they are lying.

If you aren’t 100 percent sure that someone is a liar, never venture to call them such.

What does it mean when someone tells you you’re lying?

When someone tells you that you’re lying, it is perfectly clear what they mean by it: they think you are lying about something, or they think that you are a habitual liar in general.

In other words, when someone calls you a liar, they are telling you (and whoever is nearby) that you lie.