Origin: Latin suffix -al
Whimsical has 2 different meanings across 1 category:
determined by chance or impulse or whim rather than by necessity or reason
"a capricious refusal"
"authoritarian rulers are frequently capricious"
"the victim of whimsical persecutions"
Given to whimsy.
"The old shopkeeper was so whimsical that he once tied tiny bells to the legs of his customers' shopping bags just for fun."