unilateral

Universal Words adjective done by one member of a group or an organization without the agreement of the other members: a unilateral decision * a unilateral declaration of independence * They were forced to take unilateral action. * They had campaigned vigorously for unilateral nuclear disarmament (= when one country gets rid of its nuclear weapons without waiting for other countries to do the same). compareBILATERAL, MULTILATERAL unilaterally adverb: The rebels unilaterally declared a ceasefire.