Unconcern

Noun

 * 1)  indifference or lack of concern.

Thesaurus
accidia, acedia, aloofness, apathy, ataraxia, ataraxy, benumbedness, blah, blahs, boredom, carelessness, casualness, comatoseness, detachment, disinterest, disinterestedness, dispassion, disregard, disregardfulness, dullness, easygoingness, heartlessness, hebetude, heedlessness, hopelessness, impassiveness, impassivity, inappetence, inattention, incuriosity, incuriousness, indifference, indifferentism, indifferentness, indiscrimination, inexcitability, insouciance, intellectual inertia, lack of affect, lack of appetite, lack of interest, lackadaisicalness, languidness, lassitude, lethargicalness, lethargy, listlessness, mindlessness, negligence, nonchalance, numbness, offhandedness, passiveness, passivity, phlegm, phlegmaticalness, phlegmaticness, plucklessness, pococurantism, recklessness, regardlessness, resignation, resignedness, sloth, sluggishness, sopor, soporifousness, spiritlessness, spunklessness, stolidity, stupefaction, stupor, supineness, torpidity, torpidness, torpor, unanxiousness, uninquisitiveness, uninterestedness, unmindfulness, unsolicitousness, withdrawal, withdrawnness

Related terms

 * unconcerned