形容词

1. 反复无常的;善变的
Someone who is capricious often changes their mind unexpectedly.

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: impulsivewhimsical

2. changeable

e.g. a capricious summer breeze
freakish weather

Synonym: freakish