Definition of certaintynext

Synonym Chooser

How does the noun certainty differ from other similar words?

The words certitude and conviction are common synonyms of certainty. While all three words mean "a state of being free from doubt," certainty and certitude are very close; certainty may stress the existence of objective proof.

claims that cannot be confirmed with scientific certainty

When might certitude be a better fit than certainty?

The synonyms certitude and certainty are sometimes interchangeable, but certitude may emphasize a faith in something not needing or not capable of proof.

believes with certitude in an afterlife

When is conviction a more appropriate choice than certainty?

In some situations, the words conviction and certainty are roughly equivalent. However, conviction applies especially to belief strongly held by an individual.

holds firm convictions on every issue

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 certainty Mars's interaction with the other planets serves up indecision instead of certainty. Lisa Stardust, Refinery29, 4 Nov. 2025 This has always been about embracing probabilities, not the luxury of following certainties. Sam McDowell 4, Kansas City Star, 4 Nov. 2025 Confidence is different from certainty. Literary Hub, 3 Nov. 2025 Reality shows exist so that there’s some certainty in the world. Brian Moylan, Vulture, 31 Oct. 2025 See All Example Sentences for certainty
Recent Examples of Synonyms for certainty
Noun
  • Democrats are not ready to cave to GOP pressure to reopen the government without more assurances on health insurance subsidies, and Republicans are not opening the door to further concessions.
    Burgess Everett, semafor.com, 7 Nov. 2025
  • Before shelling out a significant portion of their cash for a diamond engagement ring or other fine jewelry, purchasers depended on conventional jewelers for in-person assurance for decades.
    Lyssanoel Frater, USA Today, 6 Nov. 2025
Noun
  • Roosevelt strategically released good news on Sundays, increasing the likelihood of getting himself front-page coverage.
    JSTOR Daily, JSTOR Daily, 7 Nov. 2025
  • These would increase the likelihood of more collisions, much like in the movie ‘Gravity’.
    Chris Young, Interesting Engineering, 7 Nov. 2025
Noun
  • The captain also saw what everyone else did on Saturday, too — Michkov’s confidence seems to be on the rise.
    Kevin Kurz, New York Times, 9 Nov. 2025
  • Truly’s confidence and abilities certainly don’t appear to be an issue.
    Eric D. Lawrence, USA Today, 9 Nov. 2025
Noun
  • Meanwhile, video-generating software like OpenAI’s Sora showcase the inevitability that AI content will funnel into the mainstream.
    Ethan Shanfeld, Variety, 7 Nov. 2025
  • Like the great tragic heroines, Marissa isn’t driven by vengeance but by inevitability, by the realization that the love that once sustained her family has also doomed it.
    JP Mangalindan, Time, 6 Nov. 2025
Noun
  • Both provide me satisfaction in my retirement.
    Point Loma-Ob Monthly, San Diego Union-Tribune, 7 Jan. 2026
  • Protein powders always felt overhyped — a product category with more marketing than satisfaction.
    Samantha Leal, Refinery29, 6 Jan. 2026
Noun
  • The probability of lightning strikes rises as a thunderstorm approaches and peaks when the storm is directly above.
    CA Weather Bot, Sacbee.com, 5 Nov. 2025
  • This has always been about embracing probabilities, not the luxury of following certainties.
    Sam McDowell November 4, Kansas City Star, 4 Nov. 2025
Noun
  • His criminal history included convictions for robbery, kidnapping and attempting to kill a corrections officer by strangling him.
    Grethel Aguila, Miami Herald, 7 Jan. 2026
  • His conviction included an enhancement for multiple murders.
    Rosalio Ahumada, Sacbee.com, 7 Jan. 2026

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Cite this Entry

“Certainty.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/certainty. Accessed 9 Jan. 2026.

More from Merriam-Webster on certainty

Last Updated: - Updated example sentences
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