1. 怪异的;反复无常的;不切实际的
A whimsical person or idea is unusual, playful, and unpredictable, rather than serious and practical.
1. determined by chance or impulse or whim rather than by necessity or reason
e.g. a capricious refusal
authoritarian rulers are frequently capricious
the victim of whimsical persecutions
Synonym: capriciousimpulsive