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capricious

American  
[kuh-prish-uhs, -pree-shuhs] / kəˈprɪʃ əs, -ˈpri ʃəs /

adjective

  1. subject to, led by, or indicative of a sudden, odd notion or unpredictable change; erratic.

    He's such a capricious boss I never know how he'll react.

    Synonyms:
    mercurial, flighty, variable
    Antonyms:
    consistent, constant, steady
  2. Obsolete. fanciful or witty.


capricious British  
/ kəˈprɪʃəs /

adjective

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

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Related Words

See fickle.

Other Word Forms

  • capriciously adverb
  • capriciousness noun
  • noncapricious adjective
  • noncapriciously adverb
  • uncapricious adjective
  • uncapriciously adverb

Etymology

Origin of capricious

First recorded in 1585–95; from French capricieux, from Italian capriccioso capriccioso

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

There are many cases, in the arbitrary, capricious death penalty system, where clemency is appropriate.

From Slate • Mar. 6, 2026

The venture's legal brief described the suspension order as "arbitrary and capricious."

From Barron's • Jan. 15, 2026

These actions, according to the lawsuit, were “ arbitrary, capricious, an abuse of discretion, not in accordance with law, and therefore invalid under the Administrative Procedure Act.”

From Salon • Dec. 11, 2025

Depending on the era and zeitgeist, the heavenly strangers gazing down upon us in judgment could be anyone from Zeus to “Dr. Who’s” Zygons, and their interest in us capricious or cruel or kind.

From Los Angeles Times • Jun. 18, 2025

A universe created from Chaos was in perfect keeping with the Greek belief in an unpredictable Nature run by capricious gods.

From "Cosmos" by Carl Sagan