fickle
US /ˈfɪk.əl/
UK /ˈfɪk.əl/
1.
changing frequently, especially as regards one's loyalties, interests, or affection
:
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The weather here is notoriously fickle.
•
She's very fickle, one day she loves you, the next she hates you.
changing frequently, especially as regards one's loyalties, interests, or affection