unorthodoxy vs heresy

unorthodoxy and heresy both are nouns.

Word	Noun	Adjective	Verb	Adverb
unorthodoxy	Yes	No	No	No
heresy	Yes	No	No	No

As nouns, unorthodoxy and heresy are synonyms defined as:

unorthodoxy and heresy: any opinions or doctrines at variance with the official or orthodox position

Other synonyms of unorthodoxy include heterodoxy.

As nouns, unorthodoxy and heresy are synonyms defined as:

unorthodoxy and heresy: a belief that rejects the orthodox tenets of a religion

unorthodoxy (noun)	heresy (noun)
the quality of being unorthodox	a belief that rejects the orthodox tenets of a religion
any opinions or doctrines at variance with the official or orthodox position	any opinions or doctrines at variance with the official or orthodox position
a belief that rejects the orthodox tenets of a religion