noun
A political stance of avoiding involvement in international affairs. Used in historical and modern contexts.
その国は長年孤立主義をとってきた。
That country has long pursued isolationism.
孤立主義は国際協力の妨げになる
Isolationism can sometimes hinder international cooperation.
鎖国 refers specifically to a closed-country policy, historically Japan's sakoku, while 孤立主義 is a broader term for isolationism in international relations.
不干渉主義 is non-interventionism, focusing on not interfering in other countries' affairs, whereas 孤立主義 implies a broader withdrawal from international engagement.
Compound of 孤立 (isolation) and 主義 (principle, doctrine). A straightforward modern term for isolationism.