a person who strongly opposes somebody/something 对立者；对抗者；对手；敌人 He has always been the prime minister’s most formidable antagonist in Parliament. 他一直是总理在议会中最强大的反对者。
Word Originlate 16th cent.: from French antagoniste or late Latin antagonista, from Greek antagōnistēs, from antagōnizesthai ‘struggle against’, from ant- ‘against’ + agōnizesthai ‘struggle’ (from agōn ‘contest’).