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 The one certainty is that the dance will be awkward, not always satisfying to either side, yet essential to the prosperity and security of both. Mark Sappenfield, Christian Science Monitor, 22 May 2025 But there is no certainty about the path for the talks, as the past 10 days have made frustratingly clear in New Delhi. Alex Travelli, New York Times, 22 May 2025 Investors are hopeful that Trump eventually will lower his tariffs after reaching trade deals with other countries, but that’s not a certainty. Stan Choe, Los Angeles Times, 20 May 2025 When the only certainty was uncertainty, Elissa vowed to live. Kristen Jordan Shamus, USA Today, 19 May 2025 See All Example Sentences for certainty
Recent Examples of Synonyms for certainty
Noun
  • The Sox said there’s no assurance a future transaction will occur, and in no event would a transaction take place before 2029.
    LaMond Pope, Chicago Tribune, 5 June 2025
  • But attorneys for the students argued the government’s decision gave no assurance the visa restoration would last.
    Emilia Otte, Hartford Courant, 4 June 2025
Noun
  • The likelihood of lightning increases as a thunderstorm gets closer and reaches its highest point when the storm is directly overhead.
    NC Weather Bot, Charlotte Observer, 1 June 2025
  • As the storm moves away, this likelihood decreases.
    KANSAS CITY STAR WEATHER BOT, Kansas City Star, 1 June 2025
Noun
  • Want to boost your confidence, income and career success?
    Megan Sauer, CNBC, 31 May 2025
  • That confidence paid off as Farrow received her first Tony nomination for her role as the initially meek homebody Sharon in the play by Jen Silverman, which ran at the Booth Theatre on Broadway from September through December 2024.
    Caitlin Huston, HollywoodReporter, 31 May 2025
Noun
  • Meanwhile, Americans’ satisfaction with the economy under Trump has been dropping, while many people have been calling out the president’s administration for working to slash funding for programs supporting reproductive healthcare, LGBTQ rights and more.
    Hannah Dailey, Billboard, 6 June 2025
  • Dopamine helps regulate muscle movement and contributes to positive feedback that gives an emotional sense of satisfaction and contentment.1 Jump to Key Takeaways. 1.
    Heidi Moawad, Verywell Health, 6 June 2025
Noun
  • The probability of lightning strikes rises as a thunderstorm approaches and peaks when the storm is directly above.
    CA Weather Bot, Sacbee.com, 4 June 2025
  • The authors conclude that the likelihood of this collision and merger is closer to the odds of a coin flip, with a roughly 50 percent probability that the two galaxies will avoid such an event during the next 10 billion years.
    Jennifer Ouellette, ArsTechnica, 3 June 2025
Noun
  • The Senate acquitted Trump both times after failing to get a two-thirds majority for conviction.
    Bart Jansen, USA Today, 7 June 2025
  • Picking a fight with the sitting president—regardless of personal conviction—puts this entire ecosystem at risk.
    Joel Shulman, Forbes.com, 7 June 2025

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Cite this Entry

“Certainty.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/certainty. Accessed 10 Jun. 2025.

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