adolescent, stripling, teenager: a juvenile between the onset of puberty and maturity adolescent: relating to or peculiar to or suggestive of an adolescent; "adolescent problems" adolescent, teen, teenage, teenaged: being of the age 13 through 19; "teenage mothers"; "the teen years" adolescent, jejune, juvenile, puerile: displaying or suggesting a lack of maturity; "adolescent insecurity"; "jejune responses to our problems"; "their behavior was juvenile"; "puerile jokes" adolescent: in the state of development between puberty and maturity; "adolescent boys and girls"