"on the whim" is a correct phrase that can be used in written English.
It means to do something spontaneously or impulsively, without much thought or planning beforehand. Example: "She decided to dye her hair blue on the whim, and it turned out to be a fun and unexpected change."
Support depended on the whim of a President or a few politicians.
Pardons, in contrast, rely exclusively on the whim of the grantor.
But they're bad at predicting things like who will be the next Supreme Court nominee, as that depends on the whim of the President.
Daily experience teaches us that what lasts, whether within the language of a family or the language of a family of readers, depends to some extent on the whim of happenstance.
The movements of munitions depended on the whims of stevedores.
"We live in a state of apprehension; we live on the whims of the weather of over forty-two per cent of the United States....We live with it twenty-four hours a day".
The scientific response has been reverential — their artemisinin has been seen as the first bona-fide product of synthetic biology, proof of a principle that we need not rely on the whims of nature to address the world's most pressing crises.
The New Yorker, July 14 , 1934P. 13 A young lady who has an apartment in the E. 40s, has had trouble with the doorbell lately, and callers have been dependent on the whims of a caretaker.
By B. Wilson, Clifford Orr, and Harold Ross The New Yorker, July 14 , 1934P. 13 A young lady who has an apartment in the E. 40s, has had trouble with the doorbell lately, and callers have been dependent on the whims of a caretaker.
As far as daily survival is concerned, it doesn't matter whether the origins of this linguistic power structure are racist, classist, or élitist, or whether they're based on the whims of dead white males.
But halfway to the broom I stopped on a whim, flirting with the emptiness in the center of the room.
