presumptive /pn'zAmptiv; pn'zAmptiv/ adj based on presumption (l): 基于推測(cè)的; 假定的; 推定的： ~ evidence; 推定的證據(jù); the ~ heir/the heir ~, person who is heir (to the throne, etc) until sb with a stronger claim is born. (王位等之) 推定繼承人 (在更具有繼承權(quán)的人誕生以前的繼承者) 。 ~ly adv