from The American Heritage® Dictionary of the English Language, 4th Edition

  • adj. Conforming to fact and therefore worthy of trust, reliance, or belief: an authentic account by an eyewitness.
  • adj. Having a claimed and verifiable origin or authorship; not counterfeit or copied: an authentic medieval sword.
  • adj. Law Executed with due process: an authentic deed.
  • adj. Music Of, relating to, or being a medieval mode having a range from its final tone to the octave above it.
  • adj. Music Of, relating to, or being a cadence with the dominant chord immediately preceding the tonic chord.
  • adj. Obsolete Authoritative.

from Wiktionary, Creative Commons Attribution/Share-Alike License

  • adj. Of the same origin as claimed; genuine.
  • adj. Conforming to reality and therefore worthy of trust, reliance, or belief.
  • adj. Having authority.

from the GNU version of the Collaborative International Dictionary of English

  • adj. Having a genuine original or authority, in opposition to that which is false, fictitious, counterfeit, or apocryphal; being what it purports to be; genuine; not of doubtful origin; real.
  • adj. Authoritative.
  • adj. Of approved authority; true; trustworthy; credible
  • adj. Vested with all due formalities, and legally attested.
  • adj. Having as immediate relation to the tonic, in distinction from plagal, which has a correspondent relation to the dominant in the octave below the tonic.
  • n. An original (book or document).

from The Century Dictionary and Cyclopedia

  • Having authority; possessing inherent authority; duly authorized; authoritative.
  • Real; of genuine origin; being what it purports to be: opposed to pretended or imaginary, fictitious, counterfeit, apocryphal, or unauthorized: as, authentic documents.
  • In law, executed with all due formalities; executed by the proper person and legally attested before the proper authorities: as, an authentic deed.
  • Entitled to acceptance or belief; reliable; trustworthy; of established credit, credibility, or authority: as, an authentic tale, book, writer.
  • Original; first-hand, as opposed to copied or transcribed.
  • Own; proper; properly belonging to one's self.
  • In music, having an immediate relation to the key-note or tonic: in distinction from plagal, which has a corresponding relation to the fifth or dominant in the octave below the key-note.
  • n. An authoritative or genuine document or book.
  • n. An original, as opposed to a copy or transcript.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

  • adj. not counterfeit or copied
  • adj. conforming to fact and therefore worthy of belief


from The American Heritage® Dictionary of the English Language, 4th Edition

Middle English autentik, from Old French autentique, from Late Latin authenticus, from Greek authentikos, from authentēs, author.

from Wiktionary, Creative Commons Attribution/Share-Alike License

From Old French autentique (Modern French authentique) , from Latin authenticus, from Ancient Greek αὐθεντικός (authentikόs, "principal, genuine").


  • The first one (a) is called a _perfect authentic cadence_, but the last two (c) and (d) are _imperfect authentic_.

    Music Notation and Terminology

  • The main purpose which I have had in view in writing this book has been to present an account of Greek philosophy which, within strict limits of brevity, shall be at once authentic and interesting -- _authentic_, as being based on the original works themselves, and not on any secondary sources; _interesting_, as presenting to the ordinary English reader, in language freed as far as possible from technicality and abstruseness, the great thoughts of the greatest men of antiquity on questions of permanent significance and value.

    A Short History of Greek Philosophy

  • "We have an issue with is using the term authentic aboriginal products to mean products made by non-aboriginal people overseas and the benefits going to those non-aboriginal companies," Shain Jackson of Spirit Works Limited said.

    CTV News RSS Feed

  • The word "authentic" gets thrown around a lot, but it's hard to imagine a better application than what these guys pulled together.

    Rita Houston: Rita's Railroad Revival

  • "We don't use the word authentic," to describe the Olive Garden experience, Mr. Caron says.

    Waiter, I'll Have the Crowd-Pleaser

  • Schumer, whose faith in his sense of the authentic is absolute, is every bit as attuned to perceived Democratic elitism as Fox News is.

    The Man in the Middle

  • This urge to evolve is what I call the authentic self.

    Andrew Z. Cohen: A Mysterious Compulsion To Evolve

  • Parents must and can learn that what I call authentic engagement is the essential component to successfully raising twenty-first century kids.

    Childhood Unbound

  • The key to all of it: finding what we call authentic beauty.

    You Being Beautiful

  • _L'Asino_ (The Ass), which exists only to ridicule Romanism, has recently been publishing much in praise of what it calls authentic

    Through Five Republics on Horseback, Being an Account of Many Wanderings in South America


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