grown-up; adult; often used in reproach of an adult's immaturity, or, conversely, in assertion of maturity.
Characteristic of youth or immaturity; childish.
Young; not fully developed.
A person younger than the age of full criminal responsibility, such that the person either cannot be held criminally liable or is subject to less severe forms of punishment.
A sexually immature animal.
A prepubescent child.
A publication for young adult readers.
A two-year-old racehorse.
A person younger than the age of majority; a minor.
An actor playing a child's role.