fickle

/ˈfɪk(ə)l/📚 16310 23 1托福雅思
If you describe someone as fickle, you disapprove of them because they keep changing their mind about what they like or want. 善变的

adjective [原级]浮躁的;易变的;变幻无常的

The group has been notoriously fickle in the past.
这个团体在过去是出了名的善变。

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