mature

Tu es mature.

You're mature.

Tom est mature.

Tom is mature.

Je suis un adulte mature.

I'm a mature adult.

Il est trop mature pour toi.

He's too mature for you.

C'est très mature de ta part.

That's very mature of you.

Ma nièce est attirante et mature pour son âge.

My niece is attractive and mature for her age.

Il est sérieux, appliqué, motivé, mature et ouvert d'esprit.

He is a serious, hardworking, motivated, grown-up and open-minded person.