a fully grown person who is legally responsible for their actions
Children must be accompanied by an adult.
I simply can't believe that responsible adults allowed a child to wander the streets.
Why can't you two act like civilized adults?
The obesity rate among adults has actually increased.
a fully grown animal
The fish return to the river as adults in order to breed.
fully grown or developed
preparing young people for adult life
He was a healthy young adult male.
the adult population
adult monkeys
She spent her entire adult life caring for others.
behaving in an intelligent and responsible way; typical of what is expected of an adult
When my parents split up, it was all very adult and open.
Young children become quickly bored by adult conversation.
intended for adults only because it is about sex or shows people with no clothes on
an adult movie
