whim
noun
[ wɪm ]
• a sudden desire or change of mind, especially one that is unusual or unexplained.
• "she bought it on a whim"
Similar:
impulse,
urge,
notion,
fancy,
whimsy,
foible,
idea,
caprice,
conceit,
vagary,
kink,
megrim,
crotchet,
craze,
fad,
passion,
inclination,
bent,
freak,
maggot,
humour,
whim-wham,
capriciousness,
volatility,
fickleness,
idiosyncrasy,
eccentricity,
unpredictability,
• a windlass for raising ore or water from a mine.
Origin:
late 17th century: of unknown origin. whim (sense 2) (mid 18th century) is a transferred use.