adult
The word 'adulto' is used in Italian to refer to a person who has reached maturity or the age of majority. It is often used to differentiate between children and grown-ups, and is used in a variety of contexts, including legal, social, and cultural settings.
He is a responsible adult.
This sentence is used to describe someone who is mature or reliable, suggesting that the man in question has the qualities typically associated with adulthood such as responsibility.
I'm not a child anymore, I'm an adult.
The speaker uses this statement to assert their maturity and self-sufficiency by contrasting their current status as an adult with their previous one as a child.
As an adult, he should be able to make his own choices.
This phrase underlines the expectation that adults should make their own decisions, reflecting the sense of autonomy and personal responsibility that is associated with adulthood.