Synonyms of unresponsiveness

1 Syllable
phlegm
2 Syllables
stoicism, coolness, coldness, deadness, dullness
3 Syllables
aloofness, heedlessness, disregard, listlessness, unconcern, dispassion, apathy, stolidness, detachment, drowsiness, lethargy
4 Syllables
disinterest, insouciance, stolidity, passiveness, oscitancy, passivity, incuriousness, uninterest, halfheartedness, lassitude, paralysis, paralyses
5 Syllables
impassivity, indifference, immobility, taciturnity, emotionlessness, insensibleness, incuriosity
6 Syllables
insensitivity, insensibility, impassibility
8 Syllables
uncommunicativeness