stupidity synonyms

madness irrationality infatuation indiscretion frivolity rashness senselessness nonsensicality

weakness nonsense ignorance folly simplicity inertia apathy absurdity slowness incapacity stupor heaviness lunacy ineptitude senility silliness idiocy bluntness shallowness giddiness sluggishness insensibility impracticality stupefaction obtuseness imprudence stolidity imbecility slow-wittedness fatuity asininity puerility injudiciousness fatuousness mental deficiency