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Definition of inauthentic
inauthentic
/ˌɪn.ɔːˈθɛn.tɪk/
in · au · then · tic
Adverb:inauthentically
inauthentic Lexical Profile
CEFR
C1
Grade
10
Tier
2
Usage
Top 10k
Syllables
4
inauthentic Game Scores & Validity
Scrabble US
Scrabble UK
WWF
Wordle Guess
• adjective
1
Lacking sincerity or emotional honesty; not true to one's own personality, values, or spirit (especially in psychology and existential philosophy).
Example
"His overly rehearsed apology felt completely inauthentic to the audience."
2
Not genuine, original, or true; counterfeit, false, or copied rather than real.
Example
"Art historians quickly identified the painting as an inauthentic reproduction from a later century."
Synonyms
View all synonyms for inauthentic Antonyms
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Word Origin & Etymology
Formed in the mid-17th century from the Latin privative prefix 'in-' ('not') combined with 'authentic', which derives via Old French and Late Latin from Ancient Greek 'authentikos' ('original, genuine, principal').
Cite this Entry
Wordmom. (2026). Definition of Inauthentic. In Wordmom Dictionary. Retrieved Nov 5, 2026, from https://wordmom.com/dictionary/inauthentic