noun
opposition party; the opposition
Refers to political parties not in power, contrasted with 与党 (ruling party). Common in news and political discussion.
See also: 与党
野党は政府の新しい政策に反対している。
The opposition party is opposing the government's new policy.
次の選挙で野党が過半数を取る可能性がある。
There is a possibility that the opposition will win a majority in the next election.