Simple Definition of whim
: a sudden wish, desire, decision, etc.
Full Definition of whim
1 : a capricious or eccentric and often sudden idea or turn of the mind : fancy <quit his job on a whim>
2 : a large capstan that is made with one or more radiating arms to which a horse may be yoked and that is used in mines for raising ore or water
Examples of whim
It's hard to predict voters' whims.
<on a whim, we stopped at the roadside stand to get ice cream>
Origin of whim
short for whim-wham
First Known Use: 1686
Synonym Discussion of whim
WHIM Defined for Kids
Definition of whim
: a sudden wish or desire : a sudden change of mind
Seen and Heard
What made you want to look up whim? Please tell us where you read or heard it (including the quote, if possible).