indifference
in-dif-fer-ence
noun
A lack of interest, concern, or sympathy towards something or someone.
"Her complete indifference to the outcome was surprising."
Thesaurus
Synonyms: unemotionality, emotionlessness, impassivity, stolidity, phlegm, impassiveness, nonchalance, unconcern, apathy, numbness, spiritlessness