Definitions for "grownup"
Keywords:  disappointed, jaded, child, layers
a child with layers on
a disappointed, jaded child
Keywords:  onward, fully, mature, adult, animal
fully developed; adult; mature; -- of people and animals; as, Act like a grownup!.
a fully developed person from maturity onward
(of animals) fully developed; "an adult animal"; "a grown woman"