As nouns the difference between outrageousness and heinousness
is that outrageousness is the quality of being outrageous while heinousness is the property of being heinous.
outrageousness
English
Noun
(es)
The quality of being outrageous
Related terms
*outrageously
heinousness
English
Noun
(-)
The property of being heinous.
Related terms
* atrocity
* cruelty