n. a juvenile between the onset of puberty and maturity

adj. in the state of development between puberty and maturity; "adolescent boys and girls"

adj. displaying or suggesting a lack of maturity; "adolescent insecurity"; "jejune responses to our problems"; "their behavior was juvenile"; "puerile jokes"

adj. being of the age 13 through 19; "teenage mothers"; "the teen years"

adj. relating to or peculiar to or suggestive of an adolescent; "adolescent problems"