amenableness vs cooperativeness

amenableness and cooperativeness both are nouns.

Word	Noun	Adjective	Verb	Adverb
amenableness	Yes	No	No	No
cooperativeness	Yes	No	No	No

As nouns, amenableness and cooperativeness are synonyms defined as:

Other synonyms of amenableness include amenability.

amenableness (noun)	cooperativeness (noun)
the trait of being cooperative	the trait of being cooperative