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 The memorandum filed Monday argues the court should not adopt the deferential standard of arbitrary or capricious. Michael McCann, Sportico.com, 27 Jan. 2026 The judge also said the administration’s decision had been arbitrary and capricious, given its failure to consider Vineyard Wind’s interest in having the project continue on its schedule to a March completion. Mark Chediak, Bloomberg, 27 Jan. 2026 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 See All Example Sentences for capricious
Recent Examples of Synonyms for capricious
Adjective
  • Quick recovery after extinction Interestingly, the fossil identification suggests that even in the immediate, volatile aftermath of a global catastrophe, these creatures were not isolated.
    Mrigakshi Dixit, Interesting Engineering, 23 Feb. 2026
  • Flying is the company’s second Nova-C lander named Athena featuring NASA’s PRIME-1 drill, to land a drill and mass spectrometer near the south pole of the moon in order to demonstrate the feasibility of in-situ resource utilization (ISRU) and measure the volatile content of subsurface samples.
    Richard Tribou, The Orlando Sentinel, 22 Feb. 2026
Adjective
  • Just Friends By Haley Pham Blair and Declan were once inseparable best friends whose brief, impulsive romance ended in heartbreak and silence after one shattering moment.
    Kait Hanson, Southern Living, 21 Feb. 2026
  • After getting two appointments right (Steve Cooper and Nuno Espirito Santo), Marinakis has reverted to type, with impulsive and erratic decision-making having undermined Forest’s campaign from the start.
    Oliver Kay, New York Times, 20 Feb. 2026
Adjective
  • With unpredictable weather on the horizon, the barn jacket is a happy medium between light jackets and heavy coats.
    India Roby, Glamour, 24 Feb. 2026
  • If your income is unpredictable or already stretched thin, that commitment could create more stress instead of less.
    Angelica Leicht, CBS News, 24 Feb. 2026
Adjective
  • Layered beads and mixed textures add to the slightly eccentric energy Anna Sui returns to again and again.
    Daisy Maldonado, InStyle, 21 Feb. 2026
  • The lineup for Diplo’s HonkyTonk at Stagecoach 2026 has been released, and the guest list is eccentric.
    Bethy Squires, Vulture, 19 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
  • But the Texans don’t have much incentive to trade Mills after Stroud’s inconsistent play during the playoffs (passing for 462 yards, two touchdowns and five interceptions over two games).
    Antwan Staley, New York Daily News, 21 Feb. 2026
  • May Improve Attention Some studies have found metabolic and cognitive benefits to walking in the morning, but research is inconsistent on whether this is unique to time of day.
    Heather Jones, Verywell Health, 20 Feb. 2026
Adjective
  • And, as predicted, the blizzard arrived, delivering blankets of unstable powder.
    Ray Sanchez, CNN Money, 21 Feb. 2026
  • The storm arrived as predicted and by Tuesday morning had dumped several feet of fresh, unstable snow.
    Grace Toohey, Los Angeles Times, 20 Feb. 2026

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Cite this Entry

“Capricious.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/capricious. Accessed 25 Feb. 2026.

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