distastefulness vs unsavoriness

distastefulness and unsavoriness both are nouns.

Word	Noun	Adjective	Verb	Adverb
distastefulness	Yes	No	No	No
unsavoriness	Yes	No	No	No

As nouns, distastefulness and unsavoriness are synonyms defined as:

Other synonyms of distastefulness include disgustingness, nauseatingness, sickeningness.

distastefulness (noun)	unsavoriness (noun)
the quality of being offensive	extreme unpalatability to the mouth
extreme unpalatability to the mouth	the property of being extremely unacceptable to the mind