What does capricious mean?
Capricious describes someone or something prone to sudden, unaccountable shifts in mood, behaviour, or course — acting on impulse or whim rather than reason or principle. Applied to people, it carries a disapproving tone, suggesting unreliability: a capricious manager changes requirements without warning; a capricious friend cancels plans on a moment's notice. Applied impersonally to weather, markets, machinery, or fate, it can be neutral or faintly poetic, evoking forces that seem governed by no fixed rule. The word derives from Italian 'capriccio', linked by folk etymology to 'capo' (head) and 'riccio' (hedgehog/hair standing on end), and ultimately connected to the idea of leaping like a goat. In everyday use it signals erratic inconsistency, making it a precise alternative to vaguer terms like 'unpredictable' or 'moody'. Writers prize it for capturing changeability tinged with arbitrariness.
adjectiveGiven to sudden and unaccountable changes of mood or behaviour; unpredictable and impulsive in a way that seems without good reason.
- Changing suddenly and unpredictably in mood, opinion, or behaviour, without apparent reason.
- (Of things such as weather, fortune, or systems) behaving erratically or inconsistently, as if governed by whim rather than fixed rules.
"The capricious weather turned from sunshine to hail within the hour."
"Critics complained that the referee's capricious decisions made a mockery of the match."
"She had grown weary of her employer's capricious demands, which changed daily without warning."
Capricious comes from 'caprice' — a word born from an Italian verb meaning to leap like a goat, so a capricious person is literally named after a headstrong animal that jumps about for no reason.
Reviewed by Deb Chak, Editor. AI-assisted content curated by RJS Tech Solutions LLP.
Etymology of capricious
Capricious entered English in the early 17th century from French 'capricieux', derived from the Italian noun 'capriccio', meaning a sudden start, shiver, or whim. Italian folk etymology long linked 'capriccio' to 'capo' (head) and 'riccio' (hedgehog or curly hair), suggesting a shudder of the scalp, though its deeper origin is uncertain; some connect it to 'capriolare', to leap like a goat. The adjective has retained its core sense of impulsive unpredictability since its adoption into English.
Related word forms
How capricious is actually used
Capricious is a formal-to-neutral register word common in literary, journalistic, and critical writing. Its connotation is generally negative when applied to people (unreliable, wilful) but can be neutral or even romantic when describing nature, fate, or fortune. It is more emphatic than 'changeable' — it implies not just variation but variation without reason.
Easily confused with capricious
Whimsical suggests playful, fanciful unpredictability with a light, charming tone, whereas capricious implies erratic changeability that is often frustrating or unreliable.