I. Pass., unknown, mostly of persons, “ἀγνῶτες ἀλλήλοις” Od.5.79; “ἀγνὼς πρὸς ἀγνῶτ᾽ εἶπε” A.Ch.677, cf. Supp.993, S.Ph.1008; ἀ. πατρί clam patre, E.Ion14: in Prose, “ἀ. τοῖς ἐν τῇ νηΐ” Th.1.137, cf. Pl.R.375e, etc.
b. of things, obscure, unintelligible, “ἀ. φωνὴ βάρβαρος” A.Ag.1051, cf. S.Ant.1001; ἀ δόκησις dark, vague suspicion, Id.OT681.