adversario
From LSJ
Ζῆν οὐκ ἄξιος, ὅτῳ μηδὲ εἷς ἐστι χρηστὸς φίλος → Life is not worth living if you do not have at least one friend.
Spanish > Greek
ἀντίφρων, ἀντιπάλαμνος, ἀντηρέτης, ἀντίμαχος, ἀντικείμενος, ἀντιστάτης, διάδικος, ἀντίτυπος, δυσμενής
