Definitions

1. noun

relating to or characteristic of children or young people, especially those under the age of 18

“The juvenile justice system aims to rehabilitate young offenders.”

2. adjective

relating to or characteristic of children or young people, especially those under the age of 18

“The juvenile antics of the actors in the comedy show were hilarious.”

3. adverb

in a manner typical of or characteristic of children or young people, especially those under the age of 18

“She behaved juvenilely when she threw a tantrum in public.”