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Definition of unauthentic

unauthentic

/ˌʌn.ɔːˈθɛn.tɪk/
un · au · then · tic
Adverb:unauthentically
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unauthentic Lexical Profile

unauthentic Game Scores & Validity

• adjective

1

Not genuine, original, or true; lacking authenticity or authority.

Example

"The museum curator quickly dismissed the manuscript as an unauthentic reproduction from a later century."

Synonyms
View all synonyms for unauthentic
Antonyms
View all antonyms for unauthentic

Word Nuance & Usage

While "unauthentic" is a valid and older variant, "inauthentic" is heavily preferred in modern standard English.

• Rhymes for unauthentic

• Nearby Words

unattuned
unaudited
unauspicious
unauthentic
unauthoritative
unauthorized
unavailability

Cite this Entry

Wordmom. (2026). Definition of Unauthentic. In Wordmom Dictionary. Retrieved Nov 5, 2026, from https://wordmom.com/dictionary/unauthentic
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