whimsical

形容词 whimsical:

1. determined by chance or impulse or whim rather than by necessity or reason
   同义词：capricious, impulsive

1. Capricious or whimsical.
   反复无常的，三心两意的
2. An odd, whimsical, or stubborn notion.
   怪念头奇怪的、奇异的或顽固的想法
3. It's only a whimsical story for children.
   这不过是一个希奇古怪的儿童故事。
4. He has a whimsical sense of humor.
   他有着离奇的幽默感。

whim.si.cal

adj.（形容词）
Determined by, arising from, or marked by whim or caprice.See Synonyms at arbitrary
异想天开的：因心血来潮或异想天开而做决定的，由此引起或具有其特性的参见 arbitrary
Erratic in behavior or degree of unpredictability:
反复无常的：行为举止反复无常的：
例句：
a whimsical personality.
变化无常的个性

来源：
From whimsy
源自 whimsy

【引伸】
whim.sically
adv.（副词）