noun
Dullness of mind
Synonyms: idiocy, ineptitude, stupor, stupefaction, apathy, slowness, inertia, heaviness, obtuseness, sluggishness, stolidity, feeble-mindedness, folly, weakness, silliness, nonsense, absurdity, imbecility, imprudence, ignorance, lunacy, simplicity, brainlessness, shallowness, weak-mindedness, fatuousness, incapacity, short-sightedness, poverty of intellect, impracticality, addle-headedness, dullness of comprehension, puerility, senility, giddiness, thick-headedness, asininity, muddleheadedness, lack of judgment, injudiciousness, stupidness, slow-wittedness, bluntness, emptiness of mind, insensibility, doltishness, lack of intelligence, mental deficiency, fatuity, boobishness, nitwittedness, dippiness, battiness, balminess, goofiness, baloney, nertz, bull, hooey, piffle, phooey, blatherskite
Antonyms: intelligence, wisdom, judgment, acumen, shrewdness, canniness
noun
Extreme folly
Synonyms: witlessness, senselessness, idiocy, imbecility, lunacy, nonsensicality, nonsense, indiscretion, ludicrousness, absurdity, asininity, silliness, simplicity, ineptitude, madness, infatuation, giddiness, rashness, frivolity, irrationality, damn-foolishness
Antonyms: acumen, shrewdness, canniness