Synonyms/Hypernyms (Ordered by Estimated Frequency) of noun whimsicality
2 senses of whimsicality
Sense 1
flightiness, arbitrariness, whimsicality, whimsy, whimsey, capriciousness -- (the trait of acting unpredictably and more from whim or caprice than from reason or judgment; "I despair at the flightiness and whimsicality of my memory")
=> irresponsibility, irresponsibleness -- (a form of untrustworthiness; the trait of lacking a sense of responsibility and not feeling accountable for your actions)
Sense 2
impishness, mischievousness, puckishness, whimsicality -- (the trait of behaving like an imp)
=> playfulness, fun -- (a disposition to find (or make) causes for amusement; "her playfulness surprised me"; "he was fun to be with")