stu·pid·i·ty /stʊˈpɪdəti, stjʊ-/
  愚蠢,糊塗事
  Stu·pid·i·ty n.
  1. The quality or state of being stupid; extreme dullness of perception or understanding; insensibility; sluggishness.
  2. Stupor; astonishment; stupefaction. [R.]
  A stupidity
  Past admiration strikes me, joined with fear.   --Chapman.
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  stupidity
       n 1: a poor ability to understand or to profit from experience
            [ant: intelligence]
       2: a stupid mistake [syn: betise, folly, foolishness, imbecility]