Adolescent – this is the legal definition of a young person, usually under legal age. The legal age various in the different countries – it could be 16, 18 or 21 years of age, following the provisions of the concrete local legislation. Adolescent people do not have all the legal rights applicable to the citizens. They usually fall under the supervision and control of their parents to take care of their legal affairs until reaching legal age. A synonym is “underaged”.