Viciousness is a related term of savageness.
As nouns the difference between viciousness and savageness
is that viciousness is the characteristic of being vicious while savageness is the property of being savage or behaving savagely.
viciousness
English
Noun
the characteristic of being vicious
the desire to cause harm to others; extreme cruelty
Synonyms
* (being vicious) viciosity, vitiosity
savageness
English
Noun
(en-noun)
The property of being savage or behaving savagely.