| forgetfulness(noun, disregard, neglect, failure, carelessness) |
| heaviness(noun, dullness, apathy, lethargy, negligence) |
| idleness(noun, apathy, lethargy, negligence, languor) |
| inertness(noun, dullness, apathy, lethargy, negligence) |
| lackadaisicalness(noun, apathy, lethargy, negligence, languor) |
| laissez-faire |
| languidness(noun, apathy, lethargy, negligence, languor) |
| languorousness(noun, dullness, apathy, lethargy, negligence) |
| lapse(noun, disregard, failure, negligence, inattention) |
| lax |
| laziness(noun, dullness, apathy, inactivity, lethargy) |
| leadenness(noun, dullness, apathy, lethargy, negligence) |
| leisureliness(noun, dullness, apathy, lethargy, negligence) |
| leniency(noun, tolerance) |
| lenity |
| listlessness(noun, apathy, lethargy, negligence, languor) |
| nirvana(blank, carelessness, negligence, vagueness, inattention) |
| otioseness(noun, dullness, apathy, lethargy, negligence) |
| otiosity(noun, dullness, apathy, lethargy, negligence) |
| passivity(noun, dullness, apathy, lethargy, negligence) |