Capricious means changing mood or mind for no good reason. A capricious boss, capricious weather, capricious in his favour.
It is a complaint about unpredictability rather than about temper, and it is what people say of anybody whose decisions cannot be planned around. In law, arbitrary and capricious is the standard phrase for a ruling with no rational basis.
1adjectivecapriciousChanging mood or mind for no good reason.
“Mountain weather is capricious, changing from sunshine to snow in an hour.”
capricious is a quality.
Italian capriccio first meant a shudder, and later a whim; the goat, capra, was associated with it later.
Italian
capriccioso
Middle French
capricieux
English, today
capricious
Borrowed from Middle French capricieux, from Italian capriccioso, from capriccio. by surface analysis, caprice + -ious.
Etymology from Wiktionary, CC BY-SA