Definition of "authentic" in English

adjective

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.

   • an authentic writer; an authentic portrait; authentic information
   • The report was completely authentic.

3. Designating a mode having the final as the lowest note.

4. Designating a cadence in which the dominant chord precedes the tonic.

5. (obsolete) Authoritative.