juvenile
     adj 1: of or relating to or characteristic of or appropriate for
            children or young people; "juvenile diabetes";
            "juvenile fashions"
     2: displaying or suggesting a lack of maturity; "adolescent
        insecurity"; "jejune responses to our problems"; "their
        behavior was juvenile"; "puerile jokes" [syn: adolescent,
         jejune, puerile]
     n : a youthful person [syn: juvenile person] [ant: adult]

Juvenile \Ju"ve*nile\ (?; 277), a. [L. juvenilis, from juvenis
   young; akin to E. young: cf. F. juv['e]nile, juv['e]nil. See
   Young.]
   1. Young; youthful; as, a juvenile appearance. ``A juvenile
      exercitation.'' --Glanvill.

   2. Of or pertaining to youth; as, juvenile sports.

   Syn: Puerile; boyish; childish. See Youthful.

Juvenile \Ju"ve*nile\, n.
   A young person or youth; -- used sportively or familiarly.
   --C. Bront['e].