immature

immature

i . m a . t y ʁ
im not; opposite of + mature mature, grown-up
adjective Rare #37,157
immature Often describes someone who is behaving childishly.
FR: Il est immature quand il se dispute.
EN: He is immature when he argues.

Vous êtes immature.

You are immature.

Si tu avais vécu autant que John, tu serais encore immature.

If you had lived as long as John, you would still be immature.

— The Man from Earth (2007)

C'est si immature.

That's so immature.

Elle est jeune et immature.

She is young and immature.

Quel immature !

What an immature person!

— Enquête sur un citoyen au-dessus de tout soupçon (1970)

Tu es immature.

You are immature.

Mon frère est un garçon immature.

My brother is an immature boy.

Je pense que tu as été très immature.

I think you were very immature.

Tu es vraiment immature.

You are really immature.

— Juno (2007)