1.properly wrestling against: then, generally, struggling against, antagonistic, rival, Aesch.; c. dat. rivalling, a match for another, Eur.; c. gen., ὑμεναίων γόος ἀντίπαλος id=Eur.:—as Subst., ἀντίπαλος, ὁ, an antagonist, rival, adversary, mostly in pl., Hdt., attic; τὸ ἀντίπαλον the rival party, Thuc.
2.of things, like ἰσόπαλος, nearly balanced, id=Thuc.; ἀντ. τριήρης equally large, id=Thuc.; ἀντ. δέος fear equal on both sides, mutual fear, id=Thuc.; ἤθεα ἀντίπαλα [τῆι πόλει] habits corresponding to the constitution, id=Thuc.:— τὸ ἀντίπαλον τῆς ναυμαχίας the equal balance, undecided state of the action, id=Thuc.:—adv. -λως, and in neut. pl. ἀντίπαλα, id=Thuc.