CAPRICIOUS
capricious, impulsive, whimsical
(adjective) 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”
capricious, freakish
(adjective) changeable; “a capricious summer breeze”; “freakish weather”
Source: WordNet® 3.1
Etymology
Adjective
capricious (comparative more capricious, superlative most capricious)
Impulsive and unpredictable; determined by chance, impulse, or whim
Usage notes
• Capricious can describe both a person and the decisions he or she makes.
Synonyms
• whimsical
• arbitrary
Antonyms
• conscientious
• rigorous
Anagrams
• auriscopic
Source: Wiktionary
Ca*pri"cious, a. Etym: [Cf. F. capricleux, It. capriccioso.]
Definition: Governed or characterized by caprice; apt to change suddenly;
freakish; whimsical; changeable. "Capricious poet." Shak. "Capricious
humor." Hugh Miller.
A capricious partiality to the Romish practices. Hallam.
Syn.
– Freakish; whimsical; fanciful; fickle; crotchety; fitful;
wayward; changeable; unsteady; uncertain; inconstant; arbitrary.
– Ca*pri"cious*ly, adv.
– Ca*pri"cious*ness, n.
Source: Webster’s Unabridged Dictionary 1913 Edition