is stupid
Es estúpido pasear con este tiempo.
It’s stupid to go for a walk in this weather.
My friend is stupid.
My brother is stupid.
Es estúpido buscar algo que ni siquiera sabes si existe.
It's stupid to look for something you don't even know exists.
— El jardín de los pecadores: Paradigma paradoja (Paradoja espiral) (2008)
Creo que Tomás es estúpido.
I think Tomás is stupid.
Es estúpido de tu parte cometer semejante error.
It's stupid of you to make such a mistake.
Tom es estúpido e inmaduro.
Tom is stupid and immature.
Tom no es estúpido.
Tom isn't stupid.