δυσέποπτος

From LSJ

ἀλλὰ σὺ μὲν νῦν στῆθι καὶ ἄμπνυε → but you, stop now and catch your breath | but do thou now stand, and get thy breath

Source

Spanish (DGE)

-ον inescrutable, oscuro τὸ χρῆμα Cyr.Al.M.68.456C.