stupidity

stupidity
    n 1: a poor ability to understand or to profit from experience
         [ant: {intelligence}]
    2: a stupid mistake [syn: {stupidity}, {betise}, {folly},
       {foolishness}, {imbecility}]
    

Stupidity \Stu*pid"i*ty\, n. [L. stupiditas: cf. F.
   stupidit['e].]
   1. The quality or state of being stupid; extreme dullness of
      perception or understanding; insensibility; sluggishness.
      [1913 Webster]

   2. Stupor; astonishment; stupefaction. [R.]
      [1913 Webster]

            A stupidity
            Past admiration strikes me, joined with fear.
                                                  --Chapman.
      [1913 Webster]
    

STUPIDITY, med. jur. That state of the mind which cannot perceive and 
embrace the data presented to it by the senses; and therefore the stupid 
person can, in general, form no correct judgment. It is a want of the 
perceptive powers. Ray, Med. Jur. c. 3, Sec. 40. Vide Imbecility. 
    

109 Moby Thesaurus words for "stupidity":
      absurdity, absurdness, act of folly, asininity, battiness,
      blockishness, blunder, boobishness, boorishness, bootlessness,
      botch, bovinity, brainlessness, buffoonery, bungle, cloddishness,
      clownishness, crackpottedness, crankiness, crassness, craziness,
      cretinism, crudeness, daffiness, denseness, density, desipience,
      dim-wittedness, dimness, doltishness, dull-wittedness, dullardism,
      dullness, dumb trick, dumbness, duncery, eccentricity,
      empty-headedness, fatuity, fatuousness, faux pas, folly, foolery,
      foolhardiness, foolheadedness, foolishness, frivolity,
      frivolousness, gaffe, giddiness, goofiness, grossness, hebetude,
      idiocy, imbecility, imprudence, inanity, indiscretion, ineptitude,
      insanity, irrationality, irresponsibility, lethargy, loutishness,
      ludicrousness, lumpishness, lunacy, madness, mindlessness,
      niaiserie, ninnyism, nonsense, nugacity, nuttiness, oafdom,
      oafishness, obtuseness, opacity, queerness, ridiculousness,
      risibility, sappiness, screwiness, senselessness, silliness,
      simpletonianism, simplicity, slowness, sluggishness, solecism,
      sottise, sottishness, stolidity, stupid thing, thick-headedness,
      thick-wittedness, thoughtlessness, triflingness, triviality,
      unteachability, unwise step, wackiness, weak-mindedness, weirdness,
      witlessness, wrongheadedness, yokelism, zaniness, zanyism