| insensibility(noun, disregard, apathy, indifference, calmness) |
| insouciance(noun, disregard, apathy, indifference, calmness) |
| lassitude(noun, disregard, apathy, indifference, calmness) |
| passiveness(noun, disregard, apathy, inactivity, indifference) |
| unconcern(noun, disregard, apathy, inactivity, indifference) |
| unresponsiveness(noun, disregard, apathy, inactivity, indifference) |
| callousness(noun, insensitivity, coldness, unfriendliness, hardheartedness) |
| cold-bloodedness(noun, insensitivity, coldness, hardheartedness, pitilessness) |
| emptiness |
| hardheartedness(noun, insensitivity, roughness, coldness, unfriendliness) |
| heartlessness(noun, insensitivity, coldness, hardheartedness, pitilessness) |
| nonchalance(noun, insensitivity) |
| numbness(noun, insensitivity, impassiveness) |
| ruthlessness(noun, insensitivity, coldness, hardheartedness, pitilessness) |
| stoicism(noun, disregard, apathy, indifference, calmness) |
| stoniness(noun, insensitivity, roughness, coldness, unfriendliness) |
| unfeelingness(noun, indifference, insensitivity, coldness, unfriendliness) |
| anesthesia |
| autism |
| blankness(noun, vacancy) |