insuperable
From LSJ
ἔνδον γὰρ ἁνὴρ ἄρτι τυγχάνει, κάρα στάζων ἱδρῶτι καὶ χέρας ξιφοκτόνους → yes, the man is now inside, his face and hands that have slaughtered with the sword dripping with sweat
English > Greek (Woodhouse)
adj.
P. and V. ἄπορος, ἀμήχανος (rare P.). Unconquerable: P. and V. δύσμαχος (Plat.), ἀνίκητος, V. δυσπάλαιστος, Ar. and P. ἄμαχος (Plat.); see unconquerable.
Spanish > Greek
ἀνυπέρβατος, ἀνυπέρβλητος, ἄπορος, δυσκαταπάλαιστος, ἀνυπέρεκτος, ἀνεπίθετος, ἀπαρεγχείρητος, ἄφθαστος