I.disbelief, distrust, mistrust, Hes., Hdt., etc.; ὑπὸ ἀπιστίης μὴ γενέσθαι τι from disbelief that it had happened, Hdt.; ἀπιστίαν ἔχειν περί τινος to be in doubt, Plat.
2.of things, ἐς ἀπιστίην ἀπῖχθαι to have become discredited, Hdt.; πολλὰς ἀπιστίας ἔχει it admits of many doubts, Plat.; εἰς ἀπ. καταπίπτειν id=Plat.
II.want of faith, faithlessness, unbelief, Soph.: treachery, Xen.