showiness vs ornateness

showiness and ornateness both are nouns.

Word	Noun	Adjective	Verb	Adverb
showiness	Yes	No	No	No
ornateness	Yes	No	No	No

As nouns, ornateness is a hypernym of showiness; that is, ornateness is a word with a broader meaning than showiness:

showiness: extravagant elaborateness
ornateness: an ornate appearance; being elaborately (even excessively) decorated

Other hypernyms of showiness include elaborateness.

showiness (noun)	ornateness (noun)
extravagant elaborateness	an ornate appearance; being elaborately (even excessively) decorated
	high-flown style; excessive use of verbal ornamentation