stupidity

 
Pronunciation: /stʃʊˈpɪdɪti, stʃuːˈpɪdɪti, stjʊˈpɪdɪti, stjuːˈpɪdɪti/

noun

[mass noun]
  • behaviour that shows a lack of good sense or judgement: I can’t believe my own stupidity [count noun]: one of the stupidities of our age
  • the quality of being stupid or unintelligent: a comedy of infantile stupidity