UNILATERAL

adjective Date: 1802 1. done or undertaken by one person or party, of, relating to, or affecting one side of a subject ; one-sided , constituting or relating to a contract or engagement by which an express obligation to do or forbear is imposed on only one party, 2. having parts arranged on one side , occurring on, performed on, or affecting one side of the body or one of its parts , unilineal , having only one side, ~ly adverb