English phrase from drama scenes

What Does "you can't possibly be serious" Mean?

Learn what "you can't possibly be serious" means, when people say it, and how to use it naturally in English.

Intermediate
Neutral
Firm
Express Doubt

You can't possibly be serious.

This is used to say that something sounds unbelievable, absurd, or impossible to take seriously.

From Duty Or Desire, Episode 4

When do people say this?

Scene Context

The speaker is reacting with disbelief because they think the other person cannot be serious.

Usage Scenario

Use this in an argument or surprised reaction when you strongly reject what someone said. It can sound blunt and confrontational.

Better ways to say it

1
You can’t possibly be serious.
2
You can’t be serious.
3
You have got to be kidding.

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English Comeback Phrases

What Does "you can't possibly be serious" Mean? - ReelFluent