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Synonym Chooser

How does the adjective inconstant differ from other similar words?

Some common synonyms of inconstant are capricious, fickle, mercurial, and unstable. While all these words mean "lacking firmness or steadiness (as in purpose or devotion)," inconstant implies an incapacity for steadiness and an inherent tendency to change.

an inconstant friend

When could capricious be used to replace inconstant?

The meanings of capricious and inconstant largely overlap; however, capricious suggests motivation by sudden whim or fancy and stresses unpredictability.

an utterly capricious critic

Where would fickle be a reasonable alternative to inconstant?

While in some cases nearly identical to inconstant, fickle suggests unreliability because of perverse changeability and incapacity for steadfastness.

performers discover how fickle fans can be

When can mercurial be used instead of inconstant?

While the synonyms mercurial and inconstant are close in meaning, mercurial implies a rapid changeability in mood.

made anxious by her boss's mercurial temperament

When would unstable be a good substitute for inconstant?

The words unstable and inconstant can be used in similar contexts, but 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 inconstant Energy experts have been warning that electricity is likely to get more expensive and less reliable unless renewable power that waxes and wanes under inconstant sunlight and wind is backed up by generators that can run whenever needed. IEEE Spectrum, 9 May 2024 In March, Johnson ordered the first national lockdown, caught COVID, and later spent three nights in the I.C.U. For months, the country staggered from one set of restrictions to the next—a reflection of Johnson’s inconstant attitude toward the virus. Sam Knight, The New Yorker, 25 Mar. 2024 Song as a different kind of time, as heroin became her own inconstant clock. Elizabeth Barber, Harper's Magazine, 2 Feb. 2024 Turgenev was also indecisive, inconstant, maybe even a bit unreliable. Keith Gessen, The New Yorker, 29 Aug. 2022 See All Example Sentences for inconstant
Recent Examples of Synonyms for inconstant
Adjective
  • Over the past four years, SOFI's annual returns have been considerably more volatile than the S&P 500, with returns of 27% in 2021, -71% in 2022, 116% in 2023, and 55% in 2024.
    Trefis Team, Forbes.com, 29 Apr. 2025
  • Income tax is more volatile and susceptible to the ups and downs within the economy, Greller said.
    Maya Wilkins, Chicago Tribune, 26 Apr. 2025
Adjective
  • Smith made out their former collaborators to be ungrateful and traitorous, and the kids weren't given the space to question her command.
    Zoey Lyttle, People.com, 18 Apr. 2025
  • Foreign military interventions can change victims from being viewed as a nuisance into being seen as powerful and traitorous enemies, potentially capable of exacting revenge, seizing power, or breaking away from the state.
    Benjamin A. Valentino, Foreign Affairs, 17 Oct. 2011
Adjective
  • Some British places are utterly unpredictable to pronounce.
    Maureen O'Hare, CNN Money, 3 May 2025
  • Comments Kids’ taste in entertainment tends to be unpredictable.
    Elisabeth Sherman, Parents, 2 May 2025
Adjective
  • Poor-quality or biased data can lead to inaccurate threat detection, making security systems unreliable.
    Melkon Hovhannisyan, Forbes.com, 29 Apr. 2025
  • The new prosecution also agreed that the Snapchat evidence was unreliable, but went a step further than the judge, dismissing the case entirely.
    Tresa Baldas, USA Today, 28 Apr. 2025
Adjective
  • 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
  • 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
Adjective
  • Last year’s 17-9 start proved to be a false spring, one that lulled fans into thinking Craig Counsell replacing David Ross was the real difference between an 83-win Cubs team and the postseason.
    Paul Sullivan, Chicago Tribune, 25 Apr. 2025
  • Trump’s false assertions about the outcome of the 2020 election ultimately led a crowd of supporters to storm the Capitol on Jan. 6, 2021, temporarily disrupting the certification of Biden’s win.
    Elizabeth Crisp, The Hill, 23 Apr. 2025
Adjective
  • Rigid robots are prone to damage in unstable, cramped environments and are expensive to repair.
    Kurt Knutsson, FOXNews.com, 28 Apr. 2025
  • Remember: Antioxidants can slow aging and prevent skin damage caused by unstable molecules called free radicals.
    Danielle Jackson, Glamour, 28 Apr. 2025
Adjective
  • For Tesla and other American manufacturers, the path forward is treacherous.
    Jackie Snow, Quartz, 28 Apr. 2025
  • Kang’s character, Lee Kang-su, walks a treacherous line between crime and law enforcement – a balancing act that presented unique acting challenges.
    Naman Ramachandran, Variety, 24 Apr. 2025

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Cite this Entry

“Inconstant.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/inconstant. Accessed 9 May. 2025.

Last Updated: - Updated example sentences
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