Synonyms/Hypernyms (Ordered by Estimated Frequency) of noun whimsey

2 senses of whimsey

Sense 1
notion, whim, whimsy, whimsey -- (an odd or fanciful or capricious idea; "the theatrical notion of disguise is associated with disaster in his stories"; "he had a whimsy about flying to the moon"; "whimsy can be humorous to someone with time to enjoy it")
       => idea, thought -- (the content of cognition; the main thing you are thinking about; "it was not a good idea"; "the thought never entered my mind")

Sense 2
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)