heinousness

[Jason Yan]

the quality of being shockingly cruel and inhumane

[MiguelANymn]

The property of being heinous.

[Tanya Shivari]

Atrociousness; wickedness.

[sky]

Heinousness refers to the quality of being shockingly evil, wicked, or atrocious; it describes the nature of a terrible action or deed that is extremely reprehensible or offensive.