on a whim
Without thinking seriously about the consequences.
Germany’s government said press freedom must not be switched “on and off on a whim” and Downing Street also raised concerns over the suspensions.
whim
UK /wɪm/ US /wɪm/
noun 4verb 1
Definitions
noun
1
A fanciful impulse, or sudden change of idea.
Let ev’ry Man enjoy his whim; / What’s He to Me, or I to him?
The king was tired of this whim of hers long ago, and thought she ought to get married like other people; there was nothing she need wait for, she was old enough and she would not be any richer either, for she was to have half the kingdom, which she inherited after her mother.
2
A large capstan or vertical drum turned by horse power or steam power, for raising ore or water, etc., from mines, or for other purposes
verb
1
To be seized with a whim; to be capricious.
noun
1
A bird, the Eurasian wigeon.
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