Share this entry


Synonyms of sure in English:


  • 1 I am sure that they didn't know
    certain, positive, convinced, confident, definite, assured, satisfied, persuaded;
    unhesitating, unwavering, unshakable
    [Antonyms] uncertain, doubtful
  • 2 someone was sure to be blamed
    bound, likely, destined, fated
    [Antonyms] unlikely
  • 3 a sure winner with the children
    guaranteed, unfailing, infallible, unerring, assured, certain, inevitable
    [Antonyms] uncertain, unlikely
  • 4 he entered in the sure knowledge that he would win
  • 5 a sure sign that he's worried
    reliable, dependable, trustworthy, unfailing, infallible, certain, unambiguous, true, foolproof, established, effective
  • 6 the sure hand of the soloist
    firm, steady, stable, secure, confident, steadfast, unfaltering, unwavering
  • exclamation

    Back to top  
  • 1 “Can I come too?” “Sure.”
    yes, all right, of course, indeed, certainly, absolutely, agreed
    informalOK, yeah, yep, uh-huh, you bet, I'll say, sure thing
  • Phrases

    be sure to

    be sure to feed the cat
    remember to, don't forget to, see that you, mind that you, take care to, be certain to

    for sure

    informal I'll be there for sure

    make sure

    make sure that all the doors are locked
    check, confirm, make certain, ensure, assure;
    verify, corroborate, substantiate

    Definition of sure in:

    Share this entry


    What do you find interesting about this word or phrase?

    Comments that don't adhere to our Community Guidelines may be moderated or removed.

    Get more from Oxford Dictionaries

    Subscribe to remove adverts and access premium resources