| foolishness(noun, ability, idea, mistake, humor) |
| silliness(noun, ability, idea, nonsense, absurdity) |
| absurdity(noun, ability, idea, situation, fun) |
| craziness(noun, ability, informal, idea, nonsense) |
| stupidity(noun, act, idea, mistake, rudeness) |
| insanity(noun, ability, illness, fun, nonsense) |
| madness(noun, ability, idea, fun, nonsense) |
| nonsense(noun, ability, absurdity, stupidity, foolishness) |
| irrationality(noun, idea, nonsense, absurdity, stupidity) |
| lunacy(noun, ability, idea, nonsense, absurdity) |
| imbecility(noun, ability, idea, nonsense, absurdity) |
| idiocy(noun, ability, idea, nonsense, absurdity) |
| senselessness(noun, ability, idea, nonsense, absurdity) |
| rashness(noun, idea, mistake, rudeness, lapse) |
| fatuity(noun, idea, nonsense, stupidity, foolishness) |
| inanity(noun, idea, nonsense, absurdity, stupidity) |
| foolery(noun, ability, fun, nonsense, stupidity) |
| preposterousness(noun, ability, idea, luxury, excess) |
| bloodlust |
| thoughtlessness(noun, mistake, rudeness, lapse, error) |