u·ni·lat·e·ral /ˌjuːnəˈlætərəl◂/ ●○○ adjectiveadj formal PGa unilateral action or decision is done by only one of the groups involved in a situation 〔行动或决定〕一方的,单边的,单方面的 → bilateral, multilateral a unilateral declaration of independence 单方面宣布独立
unilateral disarmament (=when one country gets rid of its own nuclear weapons without waiting for other countries to do the same) 单方面(核)裁军
—unilateralism noun [uncountableU]
—unilaterally adverbadv