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