Synonyms of phlegm

2 Syllables
stoicism, coolness, coldness, dullness
3 Syllables
aloofness, heedlessness, disregard, listlessness, unconcern, dispassion, stolidness, detachment, languidness, lethargy
4 Syllables
ataraxy, disinterest, insouciance, stolidity, passiveness, passivity, incuriousness, uninterest, halfheartedness, torpidity, lassitude, inanition
5 Syllables
impassivity, indifference, emotionlessness, equanimity, insensibleness, incuriosity, equanimities
6 Syllables
insensitivity, insensibility, unresponsiveness, impassibility