Synonyms of impassivity

1 Syllable
phlegm
2 Syllables
stoicism, torpor, coolness, coldness, dullness
3 Syllables
callousness, aloofness, heedlessness, disregard, listlessness, unconcern, dispassion, placidness, stolidness, detachment, languidness, quietude, lethargy
4 Syllables
disinterest, insouciance, cold-bloodedness, hebetude, unmindfulness, stolidity, passiveness, peacefulness, placidity, passivity, incuriousness, uninterest, halfheartedness, torpidity, lassitude, inanition
5 Syllables
impassiveness, isolationism, inconsequence, indifference, emotionlessness, insensibleness, incuriosity
6 Syllables
noninterference, insensitivity, insensibility, unresponsiveness, impassibility, inconsequentialness, non-interference
7 Syllables
inconsequentiality