noun
outright majority; working majority
Political term referring to a single party or group holding more than half the seats, enabling it to pass legislation without coalition partners. Often used in contexts like 単独過半数を獲得する or 単独過半数に達する.
与党は単独過半数を維持している。
The ruling party maintains an outright majority.
選挙で単独過半数を獲得するのは容易ではない。
It is not easy to win an outright majority in an election.
Compound of 単独 (alone, single) and 過半数 (majority). The term is a modern political expression with no special historical derivation.