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Synonyms

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

Etymology

Origin of capricious

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

Explanation

Capricious is an adjective to describe a person or thing that's impulsive and unpredictable, like a bride who suddenly leaves her groom standing at the wedding altar. You can criticize a fickle-minded person as capricious, but it could just as well describe quickly changing weather, as in "capricious spring storms." It's the adjective form of the noun caprice, which means a sudden change of mood. Caprice might come from capra, the Italian word for "goat" (because goats are frisky), or from capo, "head" + riccio, "hedgehog." Why bring hedgehogs into it? If you have a "hedgehog head," you are so scared that your hair is standing straight on end. A scared person makes sudden starts this way and that, just as a capricious person does.

Keep Reading on Vocabulary.com

Vocabulary lists containing capricious

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.

The appellate court noted that Draper made “extreme and bizarre comments” at a post-trial motions hearing and, during the trial, issued “arbitrary and capricious evidentiary rulings.”

From Los Angeles Times • May 1, 2026

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

She felt excited and strange, and not knowing what else to do, followed a capricious impulse, and, withdrawing her hands, said petulantly, “I don’t choose. Please go away and let me be!”

From "Little Women" by Louisa May Alcott

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