WHIMSEY
flightiness, arbitrariness, whimsicality, whimsy, whimsey, capriciousness
(noun) 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”
notion, whim, whimsy, whimsey
(noun) 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”
Source: WordNet® 3.1
Noun
whimsey (plural whimseys or whimsies)
Alternative spelling of whimsy
Source: Wiktionary
Whim"sey, Whimsy, n.; pl. Whimseys or Whimsies. Etym: [See Whim.]
1. A whim; a freak; a capricious notion, a fanciful or odd conceit.
"The whimsies of poets and painters." Ray.
Men's folly, whimsies, and inconstancy. Swift.
Mistaking the whimseys of a feverish brain for the calm revelation of
truth. Bancroft.
2. (Mining)
Definition: A whim.
Whim"sey, v. t.
Definition: To fill with whimseys, or whims; to make fantastic; to craze.
[R.]
To have a man's brain whimsied with his wealth. J. Fletcher.
Source: Webster’s Unabridged Dictionary 1913 Edition