Alternative formsEdit


From Middle English authentik, from Old French autentique, from Latin authenticus, from Ancient Greek αὐθεντικός (authentikós, principal, genuine), from Ancient Greek αὐθέντης (authéntēs, lord, master).


  • (US) IPA(key): /ɔ.ˈθɛn.tɪk/, /ɒ.ˈθɛn.tɪk/
  • (file)
  • (cotcaught merger) IPA(key): /ɑ.ˈθɛn.tɪk/


authentic (comparative more authentic, superlative most authentic)

  1. Of the same origin as claimed; genuine.
    The experts confirmed it was an authentic signature.
  2. Conforming to reality and therefore worthy of trust, reliance, or belief.
    The report was completely authentic.
    an authentic writer; an authentic portrait; authentic information
  3. (music, of a Gregorian mode) Having the final as the lowest note of the mode.
  4. (obsolete) authoritative
    • 1641, John Milton, Of Prelatical Episcopacy.
      And then they believe him, not for his own authority, but for a truth's sake, which they derive from elsewhere: to what end then should they cite him as authentic for episcopacy, when they cannot know what is authentic in him, but by the judgment which they brought with them, and not by any judgment which they might safely learn from him?



Derived termsEdit


The translations below need to be checked and inserted above into the appropriate translation tables, removing any numbers. Numbers do not necessarily match those in definitions. See instructions at Wiktionary:Entry layout § Translations.


  • authentic at OneLook Dictionary Search
  • authentic in Keywords for Today: A 21st Century Vocabulary, edited by The Keywords Project, Colin MacCabe, Holly Yanacek, 2018.
  • authentic” in The Century Dictionary, New York, N.Y.: The Century Co., 1911.