- stupidity - a poor ability to understand or to profit from experience
--1 is a kind of inability
Antonyms: intelligence
--1 has particulars:denseness, dumbness, slow-wittedness; dullness, dulness, obtuseness; retardation, mental retardation, backwardness, slowness, subnormality; folly, foolishness, craziness - stupidity, betise, folly, foolishness, imbecility - a stupid mistake
--2 is a kind of mistake, error, fault