distressingness vs painfulness

distressingness and painfulness both are nouns.

Word	Noun	Adjective	Verb	Adverb
distressingness	Yes	No	No	No
painfulness	Yes	No	No	No

As nouns, distressingness and painfulness are synonyms defined as:

distressingness (noun)	painfulness (noun)
the quality of being painful	the quality of being painful
	emotional distress; a fundamental feeling that people try to avoid