estúpid

In a sentence

• No siguis estúpid, entén el que dic.

  Don't be stupid, understand what I am saying.

  In this sentence, 'estúpid' is used in an imperative context to admonish or advise a person to avoid being unreasonable or making errors in understanding.

• Aquest comentari és estúpid i fora de lloc.

  This comment is stupid and out of place.

  Here, 'estúpid' is applied descriptively to characterize a specific entity (the comment) as lacking relevance or thoughtfulness.

• Tot i que sonava estúpid, el seu suggeriment va funcionar.

  Although it sounded stupid, his suggestion worked.

  In this scenario, 'estúpid' is used reflectively to express an opinion about the appearance or perceived rationality of an idea before it proved effective.