isolationism
noun [ U ] politics disapproving uk/ˌaɪ.səlˈeɪ.ʃən.ɪ.zəm/ us/ˌaɪ.səlˈeɪ.ʃən.ɪ.zəm/
孤立主义
the political principle or practice of showing interest only in your own country and not being involved in international activities
Compare: globalism