UNILATERAL

[adjective] [not gradable] - involving only one group or countryThe party leader has actually declared her support for unilateral nuclear disarmament (= giving up her country's nuclear weapons without first waiting for other countries to do the same).The rebel movement declared a unilateral and indefinite ceasefire from the beginning of the year.The event was cancelled when the main sponsors took the unilateral decision to pull out.Compare bilateral; multilateral.