stupidity

Synonyms

brainlessness, denseness, density, dim-wittedness, doltishness, dopiness, dullness (also dulness), dumbness, fatuity, foolishness, mindlessness, oafishness, obtuseness, senselessness, simpleness, slowness, stupidness, thickness, vacuity, witlessness;

Antonyms

braininess, brightness, brilliance, cleverness, intelligence, quick-wittedness, smartness;

Near Antonyms

acumen, alertness, astuteness, discernment, insight, judgment (or judgement), perception;

sagacity, sageness, sapience, wisdom, wit;

logicalness, rationality, reasonableness, soundness, validity;

Related Words

feeblemindedness, simplemindedness;

absurdity, asininity, balminess, craziness, daftness, dottiness, fatuousness, folly, idiocy, inaneness, inanity, insanity, lunacy, madness, nonsensicalness, nuttiness, preposterousness, silliness, wackiness, zaniness;