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

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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

Families typically will have no way of knowing what materials are inside counterfeit products.

— Hannah Nwoko, Parents, 13 Aug. 2026
The murder case is based upon the legal theory that Batsukh knowingly introduced the danger to Wilson despite his knowledge that the pills were counterfeit and unsafe.

— Nate Gartrell, Mercury News, 11 Aug. 2026

Definition of counterfeit

Adjective

When the Followers began, healthcare on the Western frontier was primitive, unsanitary and riddled with con artists peddling fake cures.

— Audrey Dutton, ProPublica, 25 Aug. 2026
One is the behavior Mythos engaged in, which included spinning up fake GitHub accounts, and, in at least one case, impersonating a real software developer, to try to convince Demir to drop his objections to the dangerous code.

— Jeremy Kahn, Fortune, 25 Aug. 2026

Definition of fake

Adjective

Another false dawn was Manchester City’s bright start in a 2-0 win over Chelsea, without the man who had just been named player of the tournament at Euro 2024, Rodri.

— Michael Cox, New York Times, 26 Aug. 2026
In turn, Baldoni and Wayfarer Studios filed a defamation suit, which claimed Lively and her husband, Ryan Reynolds, had planted false claims in order to take over creative control of the film.

— Caitlin Huston, HollywoodReporter, 26 Aug. 2026

Definition of false

Adjective

The elastic insult is meant to belittle the target as inauthentic, attention-hungry, unserious, and unmanly.

— Erik Forrest Jackson, The Atlantic, 22 Aug. 2026
Marketers have long used inauthentic social media posts to boost visibility, but the rise of chatbots has opened a new front.

— Scharon Harding, ArsTechnica, 6 Aug. 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