| reasonlessness |
| rebelliousness(resistance, recklessness, obstinacy, stubbornness, unruliness) |
| recalcitrance(noun, resistance, recklessness, obstinacy, stubbornness) |
| recalcitrancy(noun, resistance, recklessness, obstinacy, stubbornness) |
| refractoriness(noun, resistance, recklessness, obstinacy, stubbornness) |
| ridiculous idea(expression, nonsense, absurdity, stupidity, foolishness) |
| rubbish(nonsense, absurdity, stupidity, drivel, garbage) |
| rudeness(noun, assurance, nerve, indiscretion, thoughtlessness) |
| screw-up(noun, mistake, rudeness, lapse, error) |
| shallowness(weakness, apathy, nonsense, absurdity, ignorance) |
| shortsightedness |
| simple-mindedness(noun, mistake, rudeness, lapse, error) |
| simplicity(apathy, nonsense, absurdity) |
| slip(noun, mistake, rudeness, lapse, error) |
| slip-up(noun, mistake, rudeness, lapse, error) |
| slip of the tongue(expression, idiom, mistake, rudeness, lapse) |
| slowness(weakness, apathy, nonsense, absurdity, ignorance) |
| sluggishness(weakness, apathy, nonsense, absurdity, ignorance) |
| sottise |
| stolidity(weakness, apathy, nonsense, absurdity, ignorance) |