1
2

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 The key finding is that as the distance grows greater, the coupling stops growing, and the inconstant constant becomes constant once more. Stanley J. Brodsky, Scientific American, 16 Apr. 2024 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 See All Example Sentences for inconstant
Recent Examples of Synonyms for inconstant
Adjective
  • Camp Mystic was first established in 1926, but as flood data and modeling has improved in recent years, governments have debated how to best manage people who live, work and play along volatile rivers.
    New York Times, New York Times, 10 July 2025
  • That matters for investors seeking capital preservation as equity and bond markets remain volatile.
    Artem Milinchuk, Forbes.com, 10 July 2025
Adjective
  • Michael Fassbender plays a British intelligence officer tasked with finding who leaked a top-secret software program and betrayed their country, and the list of five potentially traitorous suspects includes his own high-profile wife (Cate Blanchett).
    Brian Truitt, USA Today, 10 May 2025
  • 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
Adjective
  • Unlike cheaper rebounders that can feel stiff or unpredictable, this one stays sturdy and responsive.
    Jordan Galloway, SELF, 15 July 2025
  • Scientists believe these unpredictable, destructive storms are linked to climate change.
    Opheli Garcia Lawler, Travel + Leisure, 14 July 2025
Adjective
  • While introducing a range of endearingly unreliable characters, the action rolls out a succession of comically absurd situations that provide laughs from the film’s beginning to its end.
    Joan MacDonald, Forbes.com, 9 July 2025
  • However, by 2024, this gimbal had grown unreliable due to age, and so the Climate Sounder now relies on the standard 28-degree rolls to make its observations.
    Keith Cooper, Space.com, 7 July 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
  • The Federal Motor Carrier Safety Administration report said that driver also made a false report related to hours of service.
    Matthew Adams, Fort Worth Star-Telegram, 3 July 2025
  • The Department of Homeland Security said in a statement that the claims are false.
    Alicia Victoria Lozano, NBC news, 3 July 2025
Adjective
  • For manufacturers using Odoo, a strategic approach to agentic AI can help prepare for unstable markets, rising costs, shifting customer demands and hostile geopolitics.
    Dmitriy Stepanov, Forbes.com, 8 July 2025
  • But Haiti remains unstable, Columbus' Manuel said, disputing the government's claim that conditions have improved there.
    Danae King, USA Today, 7 July 2025
Adjective
  • At least three people were killed in the treacherous flood waters streaming through a mountain village in New Mexico, which also knocked an entire home from its foundations and then swept it away.
    Jessica Schladebeck, New York Daily News, 9 July 2025
  • The search has been complicated by treacherous terrain, and the fact that crews are looking for an Army veteran skilled in wilderness survival who had a three-day head start.
    Cindy Von Quednow, CNN Money, 7 July 2025

Browse Nearby Words

Cite this Entry

“Inconstant.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/inconstant. Accessed 18 Jul. 2025.

Last Updated: - Updated example sentences
Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!