definition of
stupid

[1] #1 stupid a. lacking or marked by lack of intellectual acuity. wn

[2] #2 stupid n. [stupid person, stupe, dullard, dolt, pudding head, pudden-head, poor fish, pillock] a person who is not very bright; "The economy, stupid!". wn

[3] #3 stupid s. [dazed, stunned, stupefied] in a state of mental numbness especially as resulting from shock; "he had a dazed expression on his face"; "lay semiconscious, stunned (or stupefied) by the blow"; "was stupid from fatigue". wn

[4] #4 stupid a. [unintelligent] lacking intelligence; "a dull job with lazy and unintelligent co-workers". wn