unilateral
adjective uk/ˌjuː.nɪˈlæt.ər.əl/ us/ˌjuː.nəˈlæt̬.ɚ.əl/
单边的;单方的
involving only one group or country
The 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). 该党领导人实际上已经宣布了她支持单方面核裁军的决定。
Compare: bilateralmultilateral