Synonyms of unauthentic

unauthentic

adjective

ˌən-ə-ˈthen-tik 

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

• counterfeit
• fake
• false
• inauthentic
• forged
• imitation
• phony
• bogus
• ornamental
• spurious
• artificial
• synthetic
• snide
• sham
• manufactured
• deceptive
• misleading
• mock
• factitious
• simulated
• cultured
• substitute
• mimic
• dummy
• fabricated
• nonfunctioning
• delusive
• man-made

Antonyms & Near Antonyms

• real
• authentic
• genuine
• bona fide
• natural
• actual
• true
• unfaked
• valid

Example Sentences

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