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as in reliable
not likely to fail a sure cure for the winter blues—a week in the Bahamas

Synonyms & Similar Words

Antonyms & Near Antonyms

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sure

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adverb

Synonym Chooser

How does the adjective sure contrast with its synonyms?

Some common synonyms of sure are certain, cocksure, and positive. While all these words mean "having no doubt or uncertainty," sure usually stresses the subjective or intuitive feeling of assurance.

felt sure that I had forgotten something

When is certain a more appropriate choice than sure?

In some situations, the words certain and sure are roughly equivalent. However, certain may apply to a basing of a conclusion or conviction on definite grounds or indubitable evidence.

police are certain about the cause of the fire

When would cocksure be a good substitute for sure?

The words cocksure and sure can be used in similar contexts, but cocksure implies presumptuous or careless positiveness.

you're always so cocksure about everything

Where would positive be a reasonable alternative to sure?

The synonyms positive and sure are sometimes interchangeable, but positive intensifies sureness or certainty and may imply opinionated conviction or forceful expression of it.

I'm positive that's the person I saw

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 sure
Adjective
And there's a little bit of dancing towards the end of this with Sir Anthony Hopkins which was just for sure an incredibly cool experience. Wesley Stenzel, EW.com, 21 Mar. 2025 In this member-only report, AD PRO taps industry vets for their insights on green spaces where resilience, comfort, and style rule By Jesse Dorris Kitchen Trends 2025: The Big Ideas Ruling the Home’s Most Popular Room One thing’s for sure: The boring white kitchen is a thing of the past. Alia Akkam, Architectural Digest, 21 Mar. 2025
Adverb
Her Board of Governors Award from the ASC on February 22 sure had a valedictory feel to it. Christian Blauvelt, IndieWire, 25 Feb. 2025 And sure, some may call me dramatic and write this off as just a silly reality TV show about finding love sight unseen. Melanie Curry, refinery29.com, 17 Feb. 2025 See All Example Sentences for sure
Recent Examples of Synonyms for sure
Adjective
  • The guard is one of the more clutch players in the league so if the game gets tight toward the end, Denver feels confident with Murray on the court.
    Thomas G. Moukawsher, Newsweek, 22 Mar. 2025
  • The stealth nature and structure of the agreement in addition to the comments made by Caesars and Icahn strongly indicate that this is a very amicable arrangement, and that Icahn is confident in management’s ability.
    Kenneth Squire, CNBC, 22 Mar. 2025
Adjective
  • His comments sparked headlines all across the world, but some caveats are necessary.
    Andy Greene, Rolling Stone, 1 Apr. 2025
  • However, this is based on an animal study of female rats, so trials in humans are necessary to know for sure.6 3.
    Megan Nunn, Verywell Health, 1 Apr. 2025
Adjective
  • What was long known to be fixed and reliable is now fluid and frightening.
    Ben Travers, IndieWire, 23 Mar. 2025
  • Now studying to become a nurse, Zipporah plans to open a clinic in her community and take out another loan to ensure her clinic has a reliable water supply.
    Matt Damon, TIME, 22 Mar. 2025
Adjective
  • Read More | Local’s theory about ancient standing stone in UK forest turns out to be true.
    Stories by Real-Time news team, with AI summarization, Miami Herald, 28 Mar. 2025
  • That may be true, but the IEA reports that sales actually continued to grow in the U.S. at greater than a 10% clip.
    Justin Worland, Time, 28 Mar. 2025
Adjective
  • Nor is there any conclusive evidence on dosing and timing for supplements.
    Sarah Anzlovar, MS, Verywell Health, 2 Apr. 2025
  • Stone, as he's done before without providing conclusive evidence, took aim at the Central Intelligence Agency.
    Lalee Ibssa, ABC News, 1 Apr. 2025
Adverb
  • The phrase one size fits all definitely doesn’t apply to even the best bras.
    Bianca London, Glamour, 28 Mar. 2025
  • While Rare Beauty has already dabbled with a luminous powder blush and a cream blush, this Bouncy Blush is definitely the first of its kind.
    Kleigh Balugo, StyleCaster, 28 Mar. 2025
Adjective
  • As a woman, as a woman of color, and as a woman of a certain age, this is a testament to our ability.
    Erin Clack, People.com, 29 Mar. 2025
  • As investors continue to wrestle with this effect, one thing is certain: liquidity is now a top priority.
    Alex Lazarow, Forbes.com, 29 Mar. 2025
Adjective
  • Chinese President Xi Jinping has pledged that unification with the island is inevitable—through force if necessary.
    Jason D. Greenblatt, MSNBC Newsweek, 2 Apr. 2025
  • Areas Of Uncertainty While speculation is inevitable, leaders can take practical steps to position themselves to benefit from—or mitigate—the questions that lie ahead.
    John Ganem, Forbes.com, 2 Apr. 2025

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Cite this Entry

“Sure.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/sure. Accessed 5 Apr. 2025.

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