Authentic

adjective

1. not false or imitation : real, actual
2. true to one's own personality, spirit, or character
3. worthy of acceptance or belief as conforming to or based on fact
4. conforming to an original so as to reproduce essential features
5. made or done the same way as an original
6. ranging upward from the keynote compare plagal sense 1of a church mode
7. progressing from the dominant chord to the tonic compare plagal sense 2of a cadence
8. authoritativeobsolete