impassivity Synonyms

impassiveness emotionlessness unemotionality phlegm indifference stolidity stolidness stoicism serenity placidity passivity passiveness nonchalance unconcern heedlessness lack of interest lack of concern unresponsiveness uninterest impassability dispassionateness affectlessness imperturbability insensitivity callousness listlessness lethargy lassitude detachment coolness composure coldness calmness calm boredom ataraxy apathy aloofness accidie disinterest disinterestedness languor insouciance insensibleness insensibility incuriousness incuriosity impassibility equanimity dullness