ἀμετάπτωτος

A. unchanging, unchangeable, λόγοι μόνιμοι καὶ ἀ. Pl. Ti. 29b; ἐπιστήμη Arist. Top. 139b33; ἡ ἀρετή Id. MM 1209b13, Stoic. 1.50, etc.; κατάληψις ἀ. ὑπὸ λόγου Zenoib.1.20; πίστεις Phld. Rh. 1.378S. (Sup.).

b. not losing its power, of medicine, Gal. 12.422.

II. of persons, Plu. 2.659f. Adv. ‐τως Id. Dio 14, cf. Phld. Rh. 1.158S., Polystr.p.29W.