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Definition of surenext
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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
Anderson’s second Dior couture collection, sure to have some bridal looks, will be next week in Paris on July 6. Merle Ginsberg, HollywoodReporter, 29 June 2026 As a reboot, sure, why not go back to the beginning and start Elle’s evolution in high school? Ben Travers, IndieWire, 29 June 2026
Adverb
And sure, there is some truth to that. Dan Zaksheske Outkick, FOXNews.com, 23 June 2026 In the meantime, those ads sure are stuck in the brains of kids. Jon Lapook, CBS News, 21 June 2026 See All Example Sentences for sure
Recent Examples of Synonyms for sure
Adjective
  • Exploring the recent opportunity Baird is confident Innio will be able to lead and set the highest price target at $50.
    Assiatou Hann, CNBC, 3 July 2026
  • Speaking of golf, a confident politician or a confident reporter, for that matter, should walk like a golfer coming down the fairway on the 18th hole with a three-stroke lead in a major tournament.
    Peter Lucas, Boston Herald, 2 July 2026
Adjective
  • Anything tragic that happened to minorities was inevitable and necessary.
    Gustavo Arellano, Los Angeles Times, 4 July 2026
  • No contribution is necessary but encouraged once the account is open so savings can grow, the site said.
    Medora Lee, USA Today, 3 July 2026
Adjective
  • Andrews, a lifelong resident of Red Hook Houses West, said the community has waited long enough for a reliable pool.
    Hannah Kliger, CBS News, 2 July 2026
  • No reliable figures are available for battlefield casualties in the war.
    Hanna Arhirova, Los Angeles Times, 2 July 2026
Adjective
  • From viral Aldi Finds to tried-and-true products shoppers love to tell their friends about, people love the thrill of discovering something new here.
    Gabe Hauari, USA Today, 24 June 2026
  • That rugged access is part of the appeal for buyers seeking a true escape rather than a weekend cabin with neighbors in sight.
    David Caraccio, Sacbee.com, 23 June 2026
Adjective
  • That kind of research is less conclusive than clinical trials that follow subjects over time to create new and theoretically more reliable data that can do more to prove cause and effect.
    Elise M. Brett, EverydayHealth.com, 26 June 2026
  • But, again, is acting out of expediency and the desire to streamline a conclusive end the same as delivering a final season representing the best of The Bear?
    Daniel Fienberg, HollywoodReporter, 25 June 2026
Adverb
  • Cain pointed out that having the president of the United States greasing the wheels definitely helped speed things along.
    Alejandro Avila OutKick, FOXNews.com, 3 July 2026
  • It’s also led by arguably (but definitely, in my opinion) the best player to ever play the sport, Lionel Messi.
    Ben Church, CNN Money, 3 July 2026
Adjective
  • The technology has drawn public controversy since Detroit first signed a contract covering certain police precincts in 2020, and again in late 2022.
    Bonny Chu, FOXNews.com, 1 July 2026
  • By then Tanacharison is telling Washington that he is mystically protected, in the mode of certain Indigenous warriors who were placed on earth to be leaders.
    Owen Gleiberman, Variety, 1 July 2026
Adjective
  • On the one hand, this does seem inevitable, both in terms of industry direction and the desire to cut costs however possible.
    Paul Tassi, Forbes.com, 1 July 2026
  • When its inevitable end arrives, the sun’s core will exhaust the last traces of hydrogen fuel and kick off the first stellar death pangs.
    Andrew Paul, Popular Science, 1 July 2026

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Cite this Entry

“Sure.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/sure. Accessed 6 Jul. 2026.

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