P. and V. ἀθάνατος, Ar. and V. ἄφθιτος, V. ἀείζως (Aesch., Fragment), ἀείζωος (Aesch., Fragment).
immortal: P. ἀΐδιος, αἰώνιος.
ageless: P. and V. ἀγήρως; see immortal.