noun
opposing side; opposite camp; opposition
Refers to the group or faction that is opposed to one's own side in a conflict, debate, election, or competition.
選挙では、反対陣営の候補者が優勢だった。
In the election, the candidate from the opposing camp was leading.
交渉のテーブルで、反対陣営は強硬な姿勢を崩さなかった。
At the negotiating table, the opposition side maintained a hardline stance.
Compound of 反対 (opposition) and 陣営 (camp, faction).