ἄλημπτος

From LSJ

καὶ κεραμεὺς κεραμεῖ κοτέει καὶ τέκτονι τέκτων, καὶ πτωχὸς πτωχῷ φθονέει καὶ ἀοιδὸς ἀοιδῷ → and potter is ill-disposed to potter, and carpenter to carpenter, and the beggar is envious of the beggar, the singer of the singer

Source

Spanish (DGE)

-ον
inasible, inalcanzable τὸ ζητούμενον ἄλημπτον ὁ λόγος ἔδειξεν Ps.Caes.191.4.