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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
But, with the ranks of the Ukrainian armed forces severely depleted, Olha wasn’t so sure. Michael Holtz, The New Yorker, 28 Feb. 2025 Saturday night’s gonna be alright, that’s for sure. Baz Bamigboye, Deadline, 28 Feb. 2025
Adverb
Summer has only just started, but, girl, things sure are already heated. Brian Moylan, Vulture, 12 Feb. 2025 But a few more 8-figure deals would sure bolster spirits. Mike Fleming Jr, Deadline, 2 Feb. 2025 See All Example Sentences for sure
Recent Examples of Synonyms for sure
Adjective
  • She’s costumed like a clown, but her screenplay is as confident as an antihero’s cleverest heist.
    Amy Nicholson, Los Angeles Times, 26 Feb. 2025
  • However, Gomes is confident that the winter moves have given the Dodgers some added adrenaline for 2025 and will offset a potential championship hangover.
    John Perrotto, Forbes, 26 Feb. 2025
Adjective
  • Additional studies are necessary to understand how acetyl-L-carnitine impacts neuropathy and whether the benefit depends on the type of neuropathy.
    Amy Brownstein, MS, RDN, Verywell Health, 7 Mar. 2025
  • The market, says Lau, is a necessary evolution, with people moving in from out of state and the older generation of Mills 50 business owners retiring.
    Amy Drew Thompson, Orlando Sentinel, 7 Mar. 2025
Adjective
  • Some consumer groups, like the elderly who favor brick and mortar shopping or people without reliable internet access, will be disproportionately affected by closures, said Douglas Bowman, a marketing professor at the Goizueta Business School at Emory University in Georgia.
    Betty Lin-Fisher, USA TODAY, 28 Feb. 2025
  • With a credit card and a garage, enthusiasts can build a virtually new Mustang from scratch using show-quality reproduction parts available from dozens of reliable suppliers.
    Robert Ross, Robb Report, 28 Feb. 2025
Adjective
  • These actions have been saving lives and driving true culture change, creating a safer future for everyone.
    Jem Aswad, Variety, 4 Mar. 2025
  • That’s true, however, what this risk assessment request by the governor does do is put the whole matter in Newsom’s hands, despite the resentencing hearing set for later in March.
    Dominic Patten, Deadline, 4 Mar. 2025
Adjective
  • For instance, the Zantac litigation was lost due to a lack of conclusive evidence.
    Arnold Sotelo, Forbes, 7 Mar. 2025
  • In a new interview with Classic Rock, bassist Geddy Lee and guitarist Alex Lifeson discussed the band’s conclusive world tour, which coincided with drummer Neil Peart‘s failing health.
    Emily Zemler, Rolling Stone, 7 Jan. 2025
Adverb
  • What started with an iced beverage (sort of butterscotch, sort of shortbread, definitely non-alcoholic) with the Wizarding World’s opening in 2010, now comes in frozen, hot and non-dairy varieties, plus there’s butterbeer fudge, potted cream and ice cream for sale.
    Dewayne Bevil, Orlando Sentinel, 4 Mar. 2025
  • Grant is definitely thrown, and Dina is scrambling to say her friends will more than make up for it.
    Ali Barthwell, Vulture, 3 Mar. 2025
Adjective
  • What seems certain is that both the club and player will be glad when the summer transfer window opens and AC Milan can part ways with Theo Hernández with the two parties clearly needing a fresh start.
    Adam Digby, Forbes, 5 Mar. 2025
  • While using wax melts is a personal choice, experts said there are certain factors to consider.
    Simon Spichak, Health, 5 Mar. 2025
Adjective
  • Low points are inevitable in any relationship; no two people can see eye to eye all the time.
    Mark Travers, Contributor, CNBC, 9 Mar. 2025
  • Though some lament the swift pace of development, others argue that transformation is inevitable in a place as mesmerizing as Aspen, and that every generation reinvents the town while holding on to certain traditions.
    Spencer Elliott, Forbes, 9 Mar. 2025

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Cite this Entry

“Sure.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/sure. Accessed 12 Mar. 2025.

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