Synonyms and Antonyms of confirm
1 to give evidence or testimony to the truth or factualness of <several eyewitnesses who can confirm the defendant's account of what happened> Synonyms argue, attest, authenticate, bear out, certify, corroborate, substantiate, support, validate, verify, vindicate Related Words avouch, back (up), testify (to), vouch (for), witness; guarantee, warrant; affirm, assert, aver, avow, declare, profess; demonstrate, document, establish, prove, reinforce (also reenforce) Near Antonyms contradict, gainsay; deny, disavow, disclaim; challenge, contest, dispute, question Antonyms disprove, rebut, refute
2 to give official acceptance of as satisfactory <the senate must confirm an appointment to an ambassadorship> Synonyms accredit, approbate, authorize, clear, approve, finalize, formalize, homologate, OK (or okay), ratify, sanction, warrantRelated Words accept, acknowledge, affirm; certify, endorse (also indorse), validate; bless, canonize, sanctify; initial, rubber-stamp, sign, sign off (on); allow, enable, legalize, license (also licence), pass, permit; reapproveNear Antonyms ban, enjoin, forbid, illegalize, interdict, prohibit, proscribe; disregard, ignore, neglect, overlook; rebuff, rebut, refuse, spurnAntonyms decline, deny, disallow, disapprove, negative, reject, turn down, veto
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