Childhood, infancy, adolescence, or youth. Those words are the opposite of grown up.
Mature, grown up
A person who has grown up using analog radio, analog TV, and walkman. Opposite of digital native who has grown up using computers, internet, and MP3.
The opposite would be an adult or grown person.
The opposite of up is down. So, opposite of the opposite of up is up itself.
A kid is abstinently not a grown up
depends what you mean by grown ups if its 20+ then the opposite is <20 and so on OR mabye it very old people as when you get older you shrink ( after say some time you stop growing) (grown downs) or ungrown- ups or when you reverse the time space continium and people go younger
In species where the male is called a cock, the female is generally called a hen.
where did George Washington grown up at
depends what you mean by grown ups if its 20+ then the opposite is <20 and so on OR mabye it very old people as when you get older you shrink ( after say some time you stop growing) (grown downs) or ungrown- ups or when you reverse the time space continium and people go younger
The opposite to up is down.
The opposite of over might beundercontinuing
He Grown Up At Athens, Greece