Quick definitions from WordNet (adolescent)
▸ noun: a juvenile between the onset of puberty and maturity
▸ adjective: in the state of development between puberty and maturity ("Adolescent boys and girls")
▸ adjective: displaying or suggesting a lack of maturity ("Adolescent insecurity")
▸ adjective: being of the age 13 through 19
▸ adjective: relating to or peculiar to or suggestive of an adolescent ("Adolescent problems")
▸ Also see adolescent
▸ noun: a juvenile between the onset of puberty and maturity
▸ adjective: in the state of development between puberty and maturity ("Adolescent boys and girls")
▸ adjective: displaying or suggesting a lack of maturity ("Adolescent insecurity")
▸ adjective: being of the age 13 through 19
▸ adjective: relating to or peculiar to or suggestive of an adolescent ("Adolescent problems")
▸ Also see adolescent