- that can be believed or accepted; trustworthy; reliable: an authentic news report
- that is in fact as represented; genuine; real: an authentic antique
- legally attested or executed, as a deed, affidavit, etc.
- true to its type; conforming to an original in style, methods, etc.: authentic Japanese cooking
- Obsolete authoritative
ME autentike < OFr autentique < LL authenticus < Gr authentikos, genuine < authentēs, one who does things himself < autos, self + -hentēs < IE base *sen-, to prepare, achieve