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

While no one can be certain what happened, public health officials in Denver pointed to a change in supply, with fentanyl powder replacing counterfeit pills, as a possible cause for the spike in overdoses.

— Meg Wingerter, Denver Post, 9 Aug. 2026
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

Definition of counterfeit

Adjective

But if Rodgers and Newton are right about fake vaccination cards being a thing around the NFL at the time, there was apparently much bamboozling being done by a number of people.

— Armando Salguero OutKick, FOXNews.com, 11 Aug. 2026
As bait, the researchers created a fake startup, Ballena Azul, which pretended to focus on decentralized finance for large holders of cryptocurrency, which North Koreans have been known to target to fund the country’s regime.

— Michael Kan, PC Magazine, 11 Aug. 2026

Definition of fake

Adjective

Along with the WiFi jammer, deputies said they were found to be in possession of false license plates and burglary tools.

— Dean Fioresi, CBS News, 13 Aug. 2026
Many of these times, KFA employees allegedly filed false expense reports chalking up the charges to meals, drinks, or standard massages.

— Jessie Yeung, CNN Money, 12 Aug. 2026

Definition of false

Adjective

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
For graduates pessimistic about AI’s implications for the labor market, claims professing its value feel inauthentic.

— Evan Clarkson, The Conversation, 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