Atrociousness is a related term of viciousness.
As nouns the difference between atrociousness and viciousness
is that atrociousness is the state of being atrocious while viciousness is the characteristic of being vicious.
atrociousness
English
Noun
(-)
the state of being atrocious
See also
* atrocity
viciousness
English
Noun
the characteristic of being vicious
the desire to cause harm to others; extreme cruelty
Synonyms
* (being vicious) viciosity, vitiosity