'Juvenile' definitions:

Definition of 'juvenile'

(from WordNet)
adjective
Of or relating to or characteristic of or appropriate for children or young people; "juvenile diabetes"; "juvenile fashions"
adjective
Displaying or suggesting a lack of maturity; "adolescent insecurity"; "jejune responses to our problems"; "their behavior was juvenile"; "puerile jokes" [syn: adolescent, jejune, juvenile, puerile]
noun
A young person, not fully developed [syn: juvenile, juvenile person] [ant: adult, grownup]

Definition of 'Juvenile'

From: GCIDE
  • 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.] [1913 Webster]
  • 1. Young; youthful; as, a juvenile appearance. "A juvenile exercitation." --Glanvill. [1913 Webster]
  • 2. Of or pertaining to youth; as, juvenile sports.
  • 3. Characteristic of children; immature; childish; puerile; infantile; as, a juvenile temper tantrum. [PJC]
  • Syn: Puerile; boyish; childish. See Youthful. [1913 Webster]

Definition of 'Juvenile'

From: GCIDE
  • Juvenile \Ju"ve*nile\, n. A young person or youth; -- used sportively or familiarly. --C. Bront['e]. [1913 Webster]

Synonyms of 'juvenile'

From: Moby Thesaurus