1(of an action or decision) performed by or affecting only one person, group, or country involved in a situation, without the agreement of another or the others:unilateral nuclear disarmament
2relating to or affecting only one side of an organ, the body, or another structure:unilateral cerebral lesions
Derivatives
unilaterally
adverb
unilateral in other Oxford dictionaries
Definition of unilateral in the US English dictionary
