capricious

(s) changeable
- a capricious summer breeze
- freakish weather
freakish,
(s) 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
whimsical, impulsive,

freakish whimsical impulsive

capriciously capriciousness