fickle

US /ˈfɪk.əl/
UK /ˈfɪk.əl/
"fickle" picture
1.

inconstant, changeant

changing frequently, especially as regards one's loyalties, interests, or affection

:
The weather here is notoriously fickle.
Le temps ici est notoirement changeant.
She's very fickle, one day she loves you, the next she hates you.
Elle est très inconstante, un jour elle t'aime, le lendemain elle te déteste.