indifference

in·dif·fer·ence

inˈdif(ə)rəns/

noun

1. lack of interest, concern, or sympathy.

   "she shrugged, feigning indifference"

   synonyms:

   lack of concern, unconcern,disinterest, lack of interest, lack of enthusiasm, apathy, nonchalance,insouciance; More

   • unimportance.

     "it cannot be regarded as a matter of indifference"

     synonyms:

     unimportance, insignificance,irrelevance, inconsequentialityMore

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     Yup, that's it. That's just about sums  it up.