tranquille

/tʁɑ̃.kil/
1.
adjective

quiet

calm

peaceful

undisturbed

Laisse-moi tranquille, je travaille.

Leave me alone, I'm working.

Synonyms:calme, paisible, serein
2.
adjective

relaxed, easygoing

no problem / all right (informal)

easy (not difficult)

T'inquiète, on est tranquilles pour l'examen.

Don't worry, we're all set for the exam.

Synonyms:pépère, posé, cool, facile