ornateness vs grandiloquence

ornateness and grandiloquence both are nouns.

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

As nouns, ornateness and grandiloquence are synonyms defined as:

ornateness and grandiloquence: high-flown style; excessive use of verbal ornamentation

Other synonyms of ornateness include grandiosity, magniloquence, rhetoric.

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