good-humouredness vs good-naturedness

good-humouredness and good-naturedness both are nouns.

Word	Noun	Adjective	Verb	Adverb
good-humouredness	Yes	No	No	No
good-naturedness	Yes	No	No	No

As nouns, good-humouredness and good-naturedness are synonyms defined as:

good-humouredness and good-naturedness: a cheerful willingness to be obliging

Other synonyms of good-humouredness include good-humoredness, good-temperedness.

good-humouredness (noun)	good-naturedness (noun)
a cheerful willingness to be obliging	a cheerful willingness to be obliging