Having a genuine original or authority, in opposition to that which is false, fictitious, counterfeit, or apocryphal; being what it purports to be; genuine; not of doubtful origin; real; as, an authentic paper or register. To be avenged On him who had stole Jove's authentic fire. Milton.
Authoritative. [Obs.] Milton.
Of approved authority; true; trustworthy; credible; as, an authentic writer; an authentic portrait; authentic information.
Vested with all due formalities, and legally attested.
Having as immediate relation to the tonic, in distinction from plagal, which has a correspondent relation to the dominant in the octave below the tonic.
An original (book or document). [Obs.] "Authentics and transcripts." Fuller.
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