ῥᾴδιον φθείρειν φαρμακεύσεσιν ἢ ἀποτροπαῖς ἢ καὶ κλοπαῖς → easy to spoil by means of sorcery or diverting or theft
adj.
Measureless: P. ἄμετρος, Ar. and V. ἀμέτρητος.
Boundless: P. and V. ἄπειρος, Ar. and P. ἀπέραντος, V. μυρίος (also Plat. but rare P.), Ar. and V. ἄβυσσος.
Hard to understand: see inexplicable, obscure.