countervailing
adjective [ before noun ] formal uk/ˈkaʊn.təˌveɪ.lɪŋ/ us/ˈkaʊn.t̬ɚˌveɪ.lɪŋ/
对抗的，抵消的，制衡的
having equal force but an opposite effect
There was nobody strong enough to lead an effective countervailing force against the dictator. 没有人有实力领导一支能够有力对抗独裁者的武装力量。
a countervailing argument 抗衡的论点