fatuousness

insanity lunacy madness

asininity cretinism derangement fatuity foolishness imbecility inanity insipidity senselessness tomfoolery

brains intelligence

absurdity apathy idiocy ignorance lunacy nonsense silliness

asininity fatuity imbecility imprudence incapacity ineptitude injudiciousness insensibility obtuseness puerility shallowness simplicity slowness sluggishness stolidity stupefaction stupor weakness

battiness brainlessness doltishness feeble-mindedness nitwittedness stupidness thick-headedness weak-mindedness

intelligence sense

acumen canniness judgment shrewdness wisdom