indifference

(noun) unbiased impartial unconcern.

(noun) apathy demonstrated by an absence of emotional reactions. Synonyms: emotionlessness, impassivity, impassiveness, phlegm, stolidity, unemotionality.

(noun) the trait of lacking enthusiasm for or interest in things generally. Synonyms: apathy, numbness, spiritlessness.

(noun) the trait of remaining calm and seeming not to care; a casual lack of concern. Synonyms: nonchalance, unconcern.