English phrase from drama scenes

What Does "you must be delusional" Mean?

Learn what "you must be delusional" means, when people say it, and how to use it naturally in English.

Intermediate
Rude
Firm
Accuse

You must be delusional!

This is an insult meaning the speaker thinks the other person is not thinking clearly or is completely wrong.

From I Think My Wife Wants To Kill Me S2, Episode 8

When do people say this?

Scene Context

Someone insults another person by saying their thinking is irrational.

Usage Scenario

Use this only in very heated conflict, because it is rude and insulting. It is not appropriate in polite conversation or work settings.

Better ways to say it

1
You must be delusional!
2
You’re delusional!
3
You must be crazy!

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How to Accuse Someone in English

What Does "you must be delusional" Mean? - ReelFluent