Slow to learn or understand; Tending to make poor decisions or careless mistakes. Marked by a lack of intelligence or care;

A stupid mistake. Dazed, stunned, or stupefied: Silly or unwise; Showing poor judgment or little intelligence: Annoying, or causing a…. Learn more. If you say that someone or something is stupid, you mean that they show a lack of good judgment or intelligence and they are not at all sensible.

Annoying, or causing a…. Learn more. If you say that someone or something is stupid, you mean that they show a lack of good judgment or intelligence and they are not at all sensible. I'll never do anything so stupid again. I made a stupid … Lacking ordinary quickness and keenness of mind; See examples of stupid used in a sentence. Definition of stupid adjective in oxford advanced learner's dictionary. Meaning, pronunciation, picture, example sentences, grammar, usage notes, synonyms and more.

Lacking ordinary quickness and keenness of mind; See examples of stupid used in a sentence. Definition of stupid adjective in oxford advanced learner's dictionary. Meaning, pronunciation, picture, example sentences, grammar, usage notes, synonyms and more.