(n) the trait of acting unpredictably and more from whim or caprice than from reason or judgment, Syn. arbitrariness, whimsy, whimsey, whimsicality, capriciousness, Example:I despair at the flightiness and whimsicality of my memory
(n) an odd or fanciful or capricious idea, Syn. whim, whimsy, whimsey, Example: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