A whimsical person or idea is unusual, playful, and unpredictable, rather than serious and practical.
例句
McGrath remembers his offbeat sense of humor, his whimsical side...麦格拉思记得他不同寻常的幽默感和他古怪的一面。His graphic art became slighter and more whimsical.他的平面艺术变得越来越无足轻重,越来越异想天开。
英汉词典释义
adj.
异想天开的,闹着玩的;反复无常的
a whimsical personality变化无常的个性
英英词典释义
Adjective
1. determined by chance or impulse or whim rather than by necessity or reason;
"a capricious refusal""authoritarian rulers are frequently capricious""the victim of whimsical persecutions"