fickle

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

反覆無常的, 易變的

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

:
The weather here is notoriously fickle.
這裡的天氣出了名的反覆無常
She's very fickle, one day she loves you, the next she hates you.
她非常善變,一天愛你,第二天就恨你。