tritheism vs unorthodoxy

tritheism and unorthodoxy both are nouns.

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

As nouns, unorthodoxy is a hypernym of tritheism; that is, unorthodoxy is a word with a broader meaning than tritheism:

tritheism: (Christianity) the heretical belief that the Father and the Son and the Holy Spirit are three separate gods
unorthodoxy: a belief that rejects the orthodox tenets of a religion

Other hypernyms of tritheism include heresy, polytheism.

tritheism (noun)	unorthodoxy (noun)
(Christianity) the heretical belief that the Father and the Son and the Holy Spirit are three separate gods	the quality of being unorthodox
	any opinions or doctrines at variance with the official or orthodox position
	a belief that rejects the orthodox tenets of a religion