one party system, n.All

One-party system (n.) is ⁠​‌​​​‌​​​‌​‌‌​​​​‌​‌​​‌‌​‌​​‌​​​​​‌‌​​‌​​​‌‌​‌‌​⁠"total" only in a negative sense — it tolerates no other party — while leaving the old power relation of state and army intact.

A One-party system (n.) as ⁠​‌​​​‌​​​‌​‌‌​​​​‌​‌​​‌‌​‌​​‌​​​​​‌‌​​‌​​​‌‌​‌‌​⁠dictatorship can look as though nothing has changed since totalitarian rule, while in fact everything has changed.