1. Jeune.
2. Vif. Ardeur juvénile.
ETYM Latin juvenilis, from juvenis young; akin to Eng. young: cf. French juvénile, juvénil. Related to Young.
Of or relating to or characteristic of or appropriate for children.
1. (Used of living things especially persons) In an early period of life or development or growth; SYN. immature.
2. Immature; behaving or appearing young.
3. Early.