opponent/əˋponənt; əˈpəʊnənt/n [C] 1 someone who is competing against you in a sport or competition〔体育比赛或竞赛中的〕对手﹐竞争者: His opponent is twice as big as he is. 他的对手块头有他两个那么大。2 someone who disagrees with a plan, idea etc〔计划﹑观点等的〕反对者: +of opponents of Darwin's theory 达尔文理论的反对者