inhumaneness

/ˌɪnˈhjuːmənnəs/
noun
  1. The quality or state of being extremely cruel, brutal, or lacking any kindness or compassion.
    • The inhumaneness of the prison conditions shocked the international observers.
    • She could not understand the inhumaneness of people who would abandon a pet in the wilderness.
    • History books record the inhumaneness of certain regimes that oppressed their own citizens.