| dullness(noun, dullness, bluntness) |
| stupidity(noun, weakness, dullness, apathy, ignorance) |
| denseness(noun, disregard, simplicity, dullness, bewilderment) |
| bluntness(noun, dullness, bluntness) |
| brainlessness(noun, weakness, apathy, nonsense, absurdity) |
| dumbness(noun, disregard, simplicity, bewilderment, sleep) |
| simplicity(noun, disregard, apathy, nonsense, bewilderment) |
| slowness(noun, weakness, dullness, apathy, nonsense) |
| density |
| dimness(noun, dullness) |
| apathy(noun, weakness, dullness, nonsense, absurdity) |
| doltishness(noun, weakness, dullness, apathy, nonsense) |
| fatuity(noun, weakness, apathy, nonsense, absurdity) |
| imbecility(noun, apathy, nonsense, absurdity) |
| silliness(noun, apathy, nonsense, absurdity) |
| stolidity(noun, weakness, apathy, nonsense, absurdity) |
| witlessness(noun, ignorance, inexperience, unfamiliarity, unawareness) |
| feeble-mindedness(noun, weakness, apathy, nonsense, absurdity) |
| folly |
| foolishness |