iso·la·tion·ism 
/ˌaɪsəˈleɪʃəˌnɪzəm/ noun
/ˌaɪsəˈleɪʃəˌnɪzəm/ noun [noncount] : the belief that a country should not be involved with other countries : a policy of not making agreements or working with other countries
— iso·la·tion·ist /ˌaɪsəˈleɪʃənɪst/ adjective [more isolationist; most isolationist]
▪ isolationist policies
/ˌaɪsəˈleɪʃənɪst/ adjective [more isolationist; most isolationist] ▪ isolationist policies
— isolationist noun, plural isolationists [count]
