acerbity vs disagreeableness

acerbity and disagreeableness both are nouns.

Word	Noun	Adjective	Verb	Adverb
acerbity	Yes	No	No	No
disagreeableness	Yes	No	No	No

As nouns, disagreeableness is a hypernym of acerbity; that is, disagreeableness is a word with a broader meaning than acerbity:

acerbity (noun)	disagreeableness (noun)
a rough and bitter manner	an ill-tempered and offensive disposition
a sharp sour taste	the quality of being disagreeable and unpleasant
a sharp bitterness