i ‧ so ‧ la ‧ tion ‧ is ‧ m AC /ˌaɪsəˈleɪʃ ə nɪz ə m/ BrE AmE noun [uncountable]
[ Word Family: noun : ↑ isolation , ↑ isolationism , ↑ isolationist ; adjective : ↑ isolated , ↑ isolationist ; verb : ↑ isolate ]
beliefs or actions that are based on the political principle that your country should not be involved in the affairs of other countries
—isolationist adjective :
isolationist policies
—isolationist noun [countable]