stupid
The Italian word 'stupido' is used in the same way as 'stupid' in English. It is an adjective that describes someone or something as lacking in intelligence or common sense. It can be used to express disapproval or disdain towards a person's actions or behavior. For example, 'He made a stupid decision.' or 'That's a stupid idea.' Note that 'stupido' is an informal term and should be used with caution, as it can be considered rude or offensive in certain contexts.
You are a stupid, Mario.
This is a sentence where 'stupido' is used in an insult. Not generally socially acceptable unless joking amongst friends.
Don't be stupid, Andrea.
This is a sentence using 'stupido' in an imperative form, usually used to warn or scold someone about their nonsense behavior.
This is the most stupid book I have ever read.
This sentence uses 'stupido' to express a negative opinion about an object, in this case, a book. It shows high dissatisfaction or disappointment.