UNAUTHENTIC Synonyms: 38 Similar and Opposite Words

unauthentic

adjective

ˌən-ə-ˈthen-tik

Definition of unauthentic

as in counterfeit

being such in appearance only and made or manufactured with the intention of committing fraud trying to sell unauthentic autographs of American presidents

Synonyms & Similar Words

Relevance

Antonyms & Near Antonyms

Example Sentences

Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.

Recent Examples of unauthentic Moore said that no matter how famous a host or a guest is, or how elaborate and slick a production is, an unauthentic product will not resonate with audiences. — Yahya Salem, CNN Money, 9 Nov. 2025 Inaccurate debunks Amid the recycled imagery, authentic pictures of National Guard members sleeping on the floor of a federal building in Los Angeles this week were falsely described as old or unauthentic. — Emma Li, CBS News, 11 June 2025 Both games made changes to the core formula that longtime players didn't appreciate, such as an influx of unauthentic skins and a departure from the class system. — Thomas G. Moukawsher, Newsweek, 5 Feb. 2025 Its ability to accurately discern and promptly respond to unauthentic negative reviews allows businesses to maintain a legitimate, trustworthy online image. — Jon Stojan, USA TODAY, 26 July 2023 Kingsford, has seen many American-Spanish restaurants in Rhode Island prepare paella, which requires a crunchy outside, in an unauthentic way. — Globe Staff, BostonGlobe.com, 2 June 2022

Recent Examples of Synonyms for unauthentic

Adjective

Cyber criminals are using highly convincing counterfeit audio, video, and identity fabrications as tools in ways that conventional detection methods will fail to identify.

— Chuck Brooks, Forbes.com, 31 July 2026
The big panels themselves were jammed — too jammed, with hundreds reportedly unable to get inside Hall H amid unconfirmed rumors of counterfeit wristbands.

— James Hibberd, HollywoodReporter, 27 July 2026

Definition of counterfeit

Adjective

Is this the same Panthea who hates anyone fake or putting things on?

— Brian Moylan, Vulture, 5 Aug. 2026
Alongside its launch, Onton released research revealing that current top AI models struggle to filter out fake content and biased reviews—proving that today’s systems simply aren’t built for modern, noisy web environments.

— Arthur Zaczkiewicz, Footwear News, 4 Aug. 2026

Definition of fake

Adjective

There are factors that could tilt in favor of Fauci’s strategy, including the fact that his pardon would not protect him from potential state prosecutions or from a federal prosecution related to any testimony that investigators deemed false.

— Eric Tucker, Chicago Tribune, 5 Aug. 2026
Yet, the suit added, county officials later acknowledged that was false; no one from DCFS saw Sophia in person after that September 2021 report.

— Jakob Rodgers, Mercury News, 5 Aug. 2026

Definition of false

Adjective

In fact, these applications often land as inauthentic and induce eye-rolling from those reviewing them.

— Brennan Barnard, Forbes.com, 1 Aug. 2026
The social and political climate that initially made Oseman’s story feel inauthentic for some has now situated Heartstopper as a different kind of fantasy.

— Abbey White, HollywoodReporter, 16 July 2026

Definition of inauthentic

Adjective

Last month’s board election was tainted by forged ballots, including one with a voter’s name misspelled.

— Linda Robertson, Miami Herald, 16 July 2026
She was additionally found guilty of insurance fraud for taking out a $100,000 insurance policy on her husband's life with his forged signature and for submitting a claim following his death.

— Meredith Deliso, ABC News, 13 May 2026