noun Date: 1926 a policy of taking unilateral action (as in international affairs) regardless of outside support or reciprocity, unilateralist noun or adjective
UNILATERALISM
Meaning of UNILATERALISM in English
Merriam Webster. Explanatory English dictionary Merriam Webster. Толковый словарь английского языка Мерриам-Уэбстер. 2012