Juvenile
Part of speech: adjective
Definition: young; not fully developed characteristic of youth or immaturity; childish
Part of speech: noun
Definition: a prepubescent child a person not legally of age, or who is younger than may be charged with an offence an animal that is not sexually mature an actor playing a child's role
Example sentence: Tolerating organized crime promotes the cheap philosophy that everything is a racket. It promotes cynicism among adults. It contributes to the confusion of the young and to the increase of juvenile delinquency.
Adolescent
Part of speech: adjective
Definition: Characteristic of, or relating to, or undergoing adolescence; immature.
Part of speech: noun
Definition: A teenager; a juvenile after puberty
Example sentence: The day the child realizes that all adults are imperfect, he becomes an adolescent; the day he forgives them, he becomes an adult; the day he forgives himself, he becomes wise.