名词异想天开，随心所欲，反复无常
1. 异想天开：whimperer 抱怨者 | whimsicality 异想天开 | whimsy 奇想
2. 心情浮动：whimsical 心情浮动的 | whimsicality 心情浮动 | whimsy 心情浮动
3. 奇特行为：whimsicalhumorous 诙 | whimsicality 奇特行为 | whimsicality 心情浮动
4. 心情浮动/奇异/奇特行为：whimsical /古怪的/诙/ | whimsicality /心情浮动/奇异/奇特行为/ | whimsy /怪念头/
noun
1. the trait of behaving like an imp
Synonym: impishness mischievousness puckishness
2. the trait of acting unpredictably and more from whim or caprice than from reason or judgment
e.g. I despair at the flightiness and whimsicality of my memory
Synonym: flightiness arbitrariness whimsy whimsey capriciousness