AskDefine | Define certainly

Dictionary Definition

certainly adv : definitely or positively (`sure' is sometimes used informally for `surely'); "the results are surely encouraging"; "she certainly is a hard worker"; "it's going to be a good day for sure"; "they are coming, for certain"; "they thought he had been killed sure enough"; "he'll win sure as shooting"; "they sure smell good"; "sure he'll come" [syn: surely, sure, for sure, for certain, sure enough, sure as shooting]

User Contributed Dictionary




From certain + -ly.


  1. Yes, affirmative answer.
    Would you like it with ice? Certainly, and with lemon please.
  2. With certainty; without doubt.
    The accident was certainly caused by human error.

Related terms


affirmative answer
with certainty, without doubt
  • Finnish: todellakin, varmasti, epäilemättä
  • French: certainement, bien sûr
  • German: sicherlich, zweifellos, gewiss, freilich
  • Greek: σίγουρα
  • Kurdish:
    Sorani: ئه‌کید
  • Romanian: bineînţeles, desigur
  • Spanish: ciertamente, sin duda


Synonyms, Antonyms and Related Words

OK, Roger, absolutely, actually, all right, alright, alrighty, amen, and no mistake, as you say, assuredly, at all events, at any rate, aye, by all means, clearly, da, decidedly, decisively, definitely, demonstrably, distinctly, exactly, factually, fatefully, fine, for a certainty, for a fact, for certain, for real, for sure, forsooth, good, good enough, hear, historically, in all conscience, in fact, in reality, in truth, in very sooth, indeed, indeedy, indefeasibly, indubitably, ineluctably, inescapably, inevasibly, inevitably, inexorably, inflexibly, irrevocably, ja, just so, mais oui, manifestly, most assuredly, most certainly, naturally, naturellement, necessarily, nothing else but, noticeably, observably, obviously, of a truth, of course, okay, oui, patently, positively, precisely, quite, rather, really, really-truly, relentlessly, right, righto, sensibly, seriously, sure, sure thing, surely, to a certainty, to be sure, truly, unambiguously, unavoidably, uncontrollably, undeniably, undoubtedly, unequivocally, unmistakably, unpreventably, unyieldingly, verily, veritably, very well, visibly, well and good, why yes, with truth, without doubt, yea, yeah, yep, yes, yes indeed, yes indeedy, yes sir, yes sirree
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