noun
a person who is fully developed or matured
adjective
having reached full growth or maturity
-
As a grown-up, it is important to take responsibility for your actions.
-
I still don't feel like a real grown-up, even though I have a job and pay bills.
-
I can't believe that grown-up still plays video games all day.
-
Becoming a parent made me feel like a grown-up for the first time.