nonconformism vs heresy

nonconformism and heresy both are nouns.

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

As nouns, heresy is a hypernym of nonconformism; that is, heresy is a word with a broader meaning than nonconformism:

nonconformism: a lack of orthodoxy in thoughts or beliefs
heresy: any opinions or doctrines at variance with the official or orthodox position

Other hypernyms of nonconformism include heterodoxy, unorthodoxy.

nonconformism (noun)	heresy (noun)
the practice of nonconformity	a belief that rejects the orthodox tenets of a religion
a lack of orthodoxy in thoughts or beliefs	any opinions or doctrines at variance with the official or orthodox position