| catatonia(noun, inertness) |
| disregard(noun, apathy, indifference, calmness, composure) |
| do-nothingness(noun, apathy, lethargy, negligence, languor) |
| easygoingness(noun, peace, simplicity, indifference, straightforwardness) |
| heartlessness(noun, insensitivity) |
| heaviness(noun, dullness, apathy, lethargy, negligence) |
| heedlessness(noun, disregard, apathy, indifference, calmness) |
| humbleness(noun, surrender, yielding, acceptance, despair) |
| inactiveness(noun, inactivity) |
| inanimation(noun, inertness) |
| lackadaisicalness(noun, apathy, lethargy, negligence, languor) |
| languorousness(noun, apathy, lethargy, negligence, languor) |
| latency |
| negligence(noun, dullness, apathy, indifference, lethargy) |
| peace of mind(noun, expression, idiom, calm, ease) |
| somnolence |
| stagnancy(noun, inertness) |
| stillness(noun, apathy, inactivity, laziness, sluggishness) |
| supineness(noun, apathy, lethargy, negligence, languor) |
| torpidness(noun, apathy, lethargy, negligence, languor) |