hymeneals vs ceremonial

hymeneals and ceremonial both are nouns.

Word	Noun	Adjective	Verb	Adverb
hymeneals	Yes	No	No	No
ceremonial	Yes	Yes	No	No

As nouns, ceremonial is a hypernym of hymeneals; that is, ceremonial is a word with a broader meaning than hymeneals:

Other hypernyms of hymeneals include ceremonial occasion, ceremony, observance.

hymeneals (noun)	ceremonial (noun)
the social event at which the ceremony of marriage is performed	a formal event performed on a special occasion

hymeneals (adjective)	ceremonial (adjective)
	marked by pomp or ceremony or formality