adolescent

a juvenile between the onset of puberty and maturity

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

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

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

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