How do you say he is not happy in French?

There are a few ways to say "he is not happy" in French, depending on the level of formality and nuance you want to express:

Formal:

* Il n'est pas heureux. (This is the most literal and straightforward translation.)

Informal:

* Il est pas content. (This is a more colloquial and common way to say it.)

* Il est pas bien. (This literally means "he is not well," but can be used to express that someone is unhappy or upset.)

Other options:

* Il est triste. (He is sad.)

* Il est déçu. (He is disappointed.)

* Il est contrarié. (He is upset.)

* Il est en colère. (He is angry.)

The best way to choose the right phrase depends on the context and the level of formality you want to convey.