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
Middle English autentik, from Old French autentique, from Late Latin authenticus, from Greek authentikos, from authentēs, author.(American Heritage® Dictionary of the English Language, Fourth Edition)
From Old French autentique (Modern French authentique) , from Latin authenticus, from Ancient Greek αὐθεντικός (authentikόs, "principal, genuine"). (Wiktionary)