Definition of capriciousnext
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Synonym Chooser

How does the adjective capricious differ from other similar words?

Some common synonyms of capricious are fickle, inconstant, mercurial, and unstable. While all these words mean "lacking firmness or steadiness (as in purpose or devotion)," capricious suggests motivation by sudden whim or fancy and stresses unpredictability.

an utterly capricious critic

When can fickle be used instead of capricious?

In some situations, the words fickle and capricious are roughly equivalent. However, fickle suggests unreliability because of perverse changeability and incapacity for steadfastness.

performers discover how fickle fans can be

Where would inconstant be a reasonable alternative to capricious?

Although the words inconstant and capricious have much in common, inconstant implies an incapacity for steadiness and an inherent tendency to change.

an inconstant friend

When could mercurial be used to replace capricious?

The meanings of mercurial and capricious largely overlap; however, mercurial implies a rapid changeability in mood.

made anxious by her boss's mercurial temperament

When might unstable be a better fit than capricious?

While the synonyms unstable and capricious are close in meaning, unstable implies an incapacity for remaining in a fixed position or steady course and applies especially to a lack of emotional balance.

too unstable to hold a job

Example Sentences

Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
Recent Examples of capricious There’s also a First Amendment claim, and an Administrative Procedure Act claim, which is that the government is acting illegally in an arbitrary and capricious way. Andrea Katz, The Conversation, 26 Jan. 2026 Frankfurt’s January investment Frankfurt were among the league’s most capricious teams in the first half of the season. Sebastian Stafford-Bloor, New York Times, 9 Jan. 2026 California sued, alleging the termination is unlawfully arbitrary and capricious. Zach Schonfeld, The Hill, 29 Dec. 2025 The lawsuit alleged that the USDA’s actions were arbitrary and capricious and therefore violated the Administrative Procedure Act. Aria Bendix, NBC news, 6 Nov. 2025 See All Example Sentences for capricious
Recent Examples of Synonyms for capricious
Adjective
  • His Roc Nation entertainment company has partnered with the NFL to produce the Super Bowl Halftime Shows since 2019 and is responsible for the politically volatile but culturally momentous choice to bring Bad Bunny to the stage Sunday.
    Martha Ross, Mercury News, 8 Feb. 2026
  • That also includes the lives of our officers when faced with armed juveniles in volatile situations.
    Ryan Murphy, IndyStar, 7 Feb. 2026
Adjective
  • Margot Robbie’s Catherine is whimsical, impulsive and occasionally delusional, a woman intoxicated by her own volatility.
    Ana Gutierrez, Austin American Statesman, 11 Feb. 2026
  • Intuition without reflection can become impulsive.
    Malana VanTyler, Sacbee.com, 4 Feb. 2026
Adjective
  • This delay has raised concerns about the safety of robots, drones, and autonomous vehicles operating in unpredictable environments.
    Sujita Sinha, Interesting Engineering, 11 Feb. 2026
  • This is ideal for decades of sliding across the ice, because bigger mineral grains are more likely to get plucked out by the ice, leaving holes in the surface that could cause unpredictable behavior.
    Andrea Thompson, Scientific American, 10 Feb. 2026
Adjective
  • Jenner’s red carpet fashion, however, isn’t always so eccentric.
    Kaleigh Werner, Footwear News, 14 Feb. 2026
  • The film’s eccentric flourishes may sound corny, but the writer-directors Eleanor Wilson and Alex Huston Fischer ground the premise in a deeply sincere sense of yearning.
    Shirley Li, The Atlantic, 14 Feb. 2026
Adjective
  • Rigorous, blustery winter; winding sleety spring; hot, moist enervating summer; changeful autumn with its dog-days; these are absolutely unknown.
    San Diego Union-Tribune, San Diego Union-Tribune, 1 Jan. 2023
  • Hers is the kind of face that inspires directors to tight framing — gleaming, as if smoothed from marble, and yet somehow pliant, changeful.
    Jordan Kisner Jack Davison, New York Times, 11 Oct. 2022
Adjective
  • That approach is inconsistent with Texas law and unfair to taxpayers.
    Eleanor Dearman, Fort Worth Star-Telegram, 14 Feb. 2026
  • Tagovailoa got benched last year because of his inconsistent performance and lack of velocity on his throws.
    Omar Kelly, Miami Herald, 13 Feb. 2026
Adjective
  • Studies show annual turnover among nursing assistants can approach 100%, and home care roles see turnover rates of around 75%, reflecting both burnout and unstable hours.
    Allie Canal, NBC news, 13 Feb. 2026
  • The Associated Press reported on February 9 that heavy snowfall and an unstable snowpack were the cause of most of the deaths.
    Owen Clarke, Outside, 13 Feb. 2026

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Cite this Entry

“Capricious.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/capricious. Accessed 15 Feb. 2026.

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