anti-imperialism
Political stance opposing imperialism; used in historical and ideological contexts.
He takes an anti-imperialist stance.
Anti-imperialist movements spread in the 20th century.
Imperialism; the ideology that 反帝国主義 opposes.
Anti-colonialism; closely related but focuses specifically on opposing colonial rule.
Compound of 反 (anti-) + 帝国主義 (imperialism). The term is a direct calque from Western political vocabulary.