authentic: Meaning and Definition of

au•then•tic

1. not false or copied; genuine; real: an authentic antique.
2. having the origin supported by unquestionable evidence; authenticated; verified: an authentic document of the Middle Ages; an authentic work of the old master.
3. entitled to acceptance or belief because of agreement with known facts or experience; reliable; trustworthy: an authentic report on poverty in Africa.
4. executed with all due formalities: an authentic deed.
1. (of a church mode) having a range extending from the final to the octave above. Cf. plagal.
2. (of a cadence) consisting of a dominant harmony followed by a tonic.
6. authoritative.