grosero
From LSJ
ἀλλ' εἰ μὲν ἁγνόν ἐστί σοι Πειθοῦς σέβας, γλώσσης ἐμῆς μείλιγμα καὶ θελκτήριον → but if you have holy reverence for Persuasion, the sweetness and charm of my tongue
Spanish > Greek
αὐχμηρός, βάναυσος, δημώδης, ἀγοραῖος, ἀγροικώδης, ἀνάγωγος, ἀπαίδευτος, ἀπαιδαγώγητος, ἀσχήμων, ἄγροικος, ἄμουσος, ἄχρηστος