JUVENILE

I. adjective see: young Date: 1625 1. physiologically immature or undeveloped ; young , derived from sources within the earth and coming to the surface for the first time, of, relating to, characteristic of, or suitable for children or young people , reflecting psychological or intellectual immaturity ; childish , II. noun Date: 1733 1. a young person ; youth , a book for children or young people, a young individual resembling an adult of its kind except in size and reproductive activity: as, a fledged bird not yet in adult plumage, a 2-year-old racehorse, an actor or actress who plays youthful parts