imbecility

Synonyms

absurdity, asininity, balminess, brainlessness, craziness, daftness, dippiness, dottiness, fatuity, fatuousness, folly, foolishness, inanity, insanity, lunacy, madness, nonsensicalness, nuttiness, preposterousness, senselessness, silliness, simplicity, wackiness, witlessness, zaniness;

Antonyms

prudence, sagaciousness, sagacity, sageness, sanity, sapience, sensibleness, soundness, wisdom;

Near Antonyms

logicality, logicalness, rationality, rationalness, reasonability, reasonableness, validity;

discernment, insight, perception, percipience;

Related Words

denseness, dim-wittedness, doltishness, dopiness, dullness (also dulness), dumbness, feeblemindedness, idiocy, mindlessness, oafishness, obtuseness, simplemindedness, simpleness, slowness, stupidity, stupidness, vacuity;

fallacy, irrationality, unreasonableness;

kookiness, weirdness;

laughableness, ludicrousness, ridiculousness;