errancy vs unacceptability

errancy and unacceptability both are nouns.

Word	Noun	Adjective	Verb	Adverb
errancy	Yes	No	No	No
unacceptability	Yes	No	No	No

As nouns, unacceptability is a hypernym of errancy; that is, unacceptability is a word with a broader meaning than errancy:

errancy: (Christianity) holding views that disagree with accepted doctrine; especially disagreement with papal infallibility
unacceptability: unsatisfactoriness by virtue of not conforming to approved standards

Other hypernyms of errancy include unacceptableness.

errancy (noun)	unacceptability (noun)
fallibility as indicated by erring or a tendency to err	unsatisfactoriness by virtue of not conforming to approved standards
(Christianity) holding views that disagree with accepted doctrine; especially disagreement with papal infallibility