#1 indifference n. unbiased impartial unconcern. wn
#2 indifference n. [emotionlessness, impassivity, impassiveness, phlegm, stolidity, unemotionality] apathy demonstrated by an absence of emotional reactions. wn
#3 indifference n. [apathy, numbness, spiritlessness] the trait of lacking enthusiasm for or interest in things generally. wn
#4 indifference n. [nonchalance, unconcern] the trait of remaining calm and seeming not to care; a casual lack of concern. wn
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