Akademik

juvenile
1. adjective /ˈdʒuː.vən.aɪl,ˈdʒuːvənəl/
a) young; not fully developed
b) characteristic of youth or immaturity; childish
2. noun /ˈdʒuː.vən.aɪl,ˈdʒuːvənəl/
a) a prepubescent child
b) a person not legally of age, or who is younger than may be charged with an offence

Wikipedia foundation.