orthodoxy vs unoriginality

orthodoxy and unoriginality both are nouns.

Word	Noun	Adjective	Verb	Adverb
orthodoxy	Yes	No	No	No
unoriginality	Yes	No	No	No

As nouns, unoriginality is a hypernym of orthodoxy; that is, unoriginality is a word with a broader meaning than orthodoxy:

orthodoxy (noun)	unoriginality (noun)
the quality of being orthodox (especially in religion)	the quality of being unoriginal
a belief or orientation agreeing with conventional standards	uncreativeness due to a lack of originality