nonconformism vs heterodoxy

nonconformism and heterodoxy both are nouns.

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

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

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

Other hypernyms of nonconformism include heresy, unorthodoxy.

nonconformism (noun)	heterodoxy (noun)
the practice of nonconformity	the quality of being unorthodox
a lack of orthodoxy in thoughts or beliefs	any opinions or doctrines at variance with the official or orthodox position