Antonyms for authenticate

Grammar : Verb

Spell : aw-then-ti-keyt

Phonetic Transcription : ɔˈθɛn tɪˌkeɪt

Definition of authenticate

Origin : "verify, establish the credibility of," 1650s, from Medieval Latin authenticatus, past participle of authenticare, from authenticus (see authentic). Related: Authenticated; authenticating.

verb establish as real, genuine

Example sentences :

Every king had his own seal, which was used to authenticate his public acts.
Extract from : « Richard I » by Jacob Abbott

I will begin with some anecdotes which I am myself able to authenticate.
Extract from : « Stories of Animal Sagacity » by W.H.G. Kingston

That is all very well; but how can you authenticate your claim to the property?
Extract from : « The Honor of the Name » by Emile Gaboriau

To authenticate it, I have written and signed this marginal note.
Extract from : « Blackwood's Edinburgh Magazine, Volume 69, No. 427, May, 1851 » by Various

To obtain a notary to authenticate the appeal was still harder.
Extract from : « A History of The Inquisition of The Middle Ages; volume II » by Henry Charles Lea

We mark with an asterisk the titles to editions which we have been able to authenticate by various means from actual books.
Extract from : « De Re Metallica » by Georgius Agricola

As few could write, most people had to authenticate a document in some other way, for instance, by making their mark.
Extract from : « The Common Law » by Oliver Wendell Holmes, Jr.

I give them to you that you may authenticate them and prevent anything spurious being published that might tend to defame me.
Extract from : « Fifty-two Stories of the British Navy, from Damme to Trafalgar. » by Alfred H. Miles

My very passport was gone, so that I had actually nothing to authenticate my position—not even my name.
Extract from : « Diary And Notes Of Horace Templeton, Esq. » by Charles James Lever

Not even miracles can authenticate a religion which preaches monasticism and celibacy.
Extract from : « A History of Mediaeval Jewish Philosophy » by Isaac Husik

Synonyms for authenticate

Based on : Thesaurus.com - Gutenberg.org - Dictionary.com - Random House Unabridged Dictionary, © Random House, Inc. 2019