capricious

Definition of Capricious in English :

1. capricious, freakish

changeable

Example Sentences:
'a capricious summer breeze'
'freakish weather'

2. capricious, impulsive, whimsical

determined by chance or impulse or whim rather than by necessity or reason

Example Sentences:
'a capricious refusal'
'authoritarian rulers are frequently capricious'
'the victim of whimsical persecutions'

WordNet Lexical Database for English. Princeton University. 2010.

Capricious

adjective

characterized by or liable to sudden unpredictable changes in attitude or behaviour; impulsive; fickle

adjective

1.

subject to caprices; tending to change abruptly and without apparent reason; erratic; flighty

2. Obsolete

showing wit or fancifulness

adj.

Characterized by, arising from, or subject to caprice; impulsive or unpredictable: capricious decisions; capricious weather.