Synonyms & Antonyms of sure

(Entry 1 of 2)

1 having or showing a mind free from doubt
  • are you absolutely sure that she said she was coming today?

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2 impossible to avoid or evade
  • the joke's a sure dud if you don't pause in the right places

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3 not likely to fail
  • a sure cure for the winter blues—a week in the Bahamas

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Synonyms of sure (Entry 2 of 2)

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sure, certain, positive, cocksure mean having no doubt or uncertainty. sure usually stresses the subjective or intuitive feeling of assurance. felt sure that I had forgotten something 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 positive intensifies sureness or certainty and may imply opinionated conviction or forceful expression of it. I'm positive that's the person I saw cocksure implies presumptuous or careless positiveness. you're always so cocksure about everything

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The first known use of sure was in the 13th century

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Cite this Entry

“Sure.” Thesaurus, Merriam-Webster, Accessed 23 Feb. 2020.

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Spanish Central: Translation of sure

Nglish: Translation of sure for Spanish Speakers

Britannica English: Translation of sure for Arabic Speakers

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