capricious

形容词 capricious:

1. changeable
   同义词：freakish
2. determined by chance or impulse or whim rather than by necessity or reason
   同义词：impulsive, whimsical

1. Capricious or whimsical.
   反复无常的，三心两意的
2. The novelist characterizes his heroine as capricious and passionate.
   这位小说家把女主人公刻画成反覆无常而又多情的人。
3. The climate on grassland is capricious.
   草原的气候变化无常。
4. Romantic heroines are often capricious.
   浪漫的女主人公往往难以捉摸。