Thesaurus

confirm

verb

Synonyms and Antonyms of confirm

  1. 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 of confirm argue, attest, authenticate, bear out, certify, corroborate, substantiate, support, validate, verify, vindicate Words Related to confirm 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 of confirm contradict, gainsay; deny, disavow, disclaim; challenge, contest, dispute, question Antonyms of confirm disprove, rebut, refute

  2. 2 to give official acceptance of as satisfactory the senate must confirm an appointment to an ambassadorship Synonyms of confirm accredit, approbate, authorize, clear, approve, finalize, formalize, homologate, OK (or okay), ratify, sanction, warrantWords Related to confirm 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 of confirm ban, enjoin, forbid, illegalize, interdict, prohibit, proscribe; disregard, ignore, neglect, overlook; rebuff, rebut, refuse, spurnAntonyms of confirm decline, deny, disallow, disapprove, negative, reject, turn down, veto

Synonym Discussion of confirm

confirm, corroborate, substantiate, verify, authenticate, validate mean to attest to the truth or validity of something. confirm implies the removing of doubts by an authoritative statement or indisputable fact.
    • confirmed the reports
corroborate suggests the strengthening of what is already partly established.
    • witnesses corroborated his story
substantiate implies the offering of evidence that sustains the contention.
    • the claims have yet to be substantiated
verify implies the establishing of correspondence of actual facts or details with those proposed or guessed at.
    • all statements of fact in the article have been verified
authenticate implies establishing genuineness by adducing legal or official documents or expert opinion.
    • handwriting experts authenticated the diaries
validate implies establishing validity by authoritative affirmation or by factual proof.
    • validated the hypothesis by experiments


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