/ ˈstjuːpɪd; NAmE ˈstuː-/ adjective , noun
■ adjective ( stu·pider , stu·pidest )
HELP NOTE : more stupid and most stupid are also common
1.
showing a lack of thought or good judgement
SYN foolish , silly :
a stupid mistake
It was a pretty stupid thing to do.
I was stupid enough to believe him.
It was stupid of you to get involved.
2.
( disapproving ) ( of a person ) slow to learn or understand things; not clever or intelligent :
He'll manage—he isn't stupid.
Forgetting my notes made me look stupid .
3.
[ only before noun ] ( informal ) used to emphasize that you are annoyed with sb/sth :
I can't get the stupid thing open!
Get your stupid feet off the chair!
► stu·pid·ly adverb :
I stupidly agreed to lend him the money.
Todd stared stupidly at the screen.
■ noun
[ sing. ] ( informal ) if you call sb stupid , you are telling them, usually in a joking way, that you think they are not being very intelligent :
Yes, stupid, it's you I'm talking to!
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WORD ORIGIN
mid 16th cent.: from French stupide or Latin stupidus , from stupere be amazed or stunned.