Synonyms for indifference
noun
Apathy
unconcern, nonchalance, aloofness, impassiveness, impassivity, impassibility, coldness, coolness, insensitivity, insensibility, callousness, alienation, disregard, disinterest, insouciance, noninterference, inertia, neutrality, isolationism, insusceptibility, immunity, phlegm, heedlessness, detachment, dullness, sluggishness, listlessness, torpor, stupor, cold-bloodedness, disdain, stoicism, cool*.
Insignificance
unimportance, irrelevance, triviality; see insignificance.
See indifference in Webster's New World Roget's A-Z Thesaurus II
noun
Lack of importance:
inconsequence, inconsequentiality, inconsequentialness, insignificance, insignificancy, unimportance. See concernLack of emotion or interest:
apathy, disinterest, impassivity, incuriosity, incuriousness, insensibility, insensibleness, lassitude, lethargy, listlessness, phlegm, stolidity, stolidness, unconcern, uninterest, unresponsiveness. See feelings
Learn more about indifference