isolationism /ˌaɪsəˈleɪʃəˌnɪzəm/ noun Learner's definition of ISOLATIONISM
[noncount]
: the belief that a country should not be involved with other countries : a policy of not making agreements or working with other countries孤立主义
— isolationist
/ˌaɪsəˈleɪʃənɪst/ adjective [more isolationist; most isolationist]
— isolationist
noun, plural isolationists [count]