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authenticate

verb

Synonyms and Antonyms of authenticate

1 to declare (something) to be true or genuine

  • a jeweler authenticated the diamond as real
Synonyms of authenticate

attest, avouch, certify, testify (to), vouch (for), witness
Words Related to authenticate

guarantee, warrant

affirm, assert, aver, avow, profess, vow

2 to give evidence or testimony to the truth or factualness of

  • we require more than simply your word to authenticate this story
Synonyms of authenticate

argue, attest, bear out, certify, confirm, corroborate, substantiate, support, validate, verify, vindicate
Words Related to authenticate

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 authenticate

contradict, gainsay

deny, disavow, disclaim

challenge, contest, dispute, question
Antonyms of authenticate

disprove, rebut, refute

Synonym Discussion of authenticate

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

Learn More about authenticate

  1. See words that rhyme with authenticate Dictionary: Definition of authenticate Spanish Central: Translation of authenticate Nglish: Translation of authenticate for Spanish speakers Britannica English: Translation of authenticate for Arabic speakers

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