adolescent /ˌæd.əˈlɛs.ənt/adjective 1noun 1forms 3 adjective1 •Of, relating to, or at the age of adolescence; at the stage between being a child and an adult.Schools, unless discipline were doubly strong, / Detain their adolescent charge too long. — 1785 noun1 •A person who is in adolescence; someone who has reached puberty but is not yet an adult.It may be wartime, but Miss Adolescent wants her fun! — 1944 formsadolescents · more adolescent · most adolescent