au·then·tic
adjective: authentic
- of undisputed origin; genuine.
- made or done in the traditional or original way, or in a way that faithfully resembles an original.
- based on facts; accurate or reliable.
- (in existentialist philosophy) relating to or denoting an emotionally appropriate, significant, purposive, and responsible mode of human life.
- Music
(of a church mode) comprising the notes lying between the principal note or final and the note an octave higher.
Origin