affability vs affableness

affability and affableness both are nouns.

Word	Noun	Adjective	Verb	Adverb
affability	Yes	No	No	No
affableness	Yes	No	No	No

As nouns, affability and affableness are synonyms defined as:

affability and affableness: a disposition to be friendly and approachable (easy to talk to)

Other synonyms of affability include amiability, amiableness, bonhomie, geniality.

affability (noun)	affableness (noun)
a disposition to be friendly and approachable (easy to talk to)	a disposition to be friendly and approachable (easy to talk to)