grandiosity vs magniloquence

grandiosity and magniloquence both are nouns.

Word	Noun	Adjective	Verb	Adverb
grandiosity	Yes	No	No	No
magniloquence	Yes	No	No	No

As nouns, grandiosity and magniloquence are synonyms defined as:

grandiosity and magniloquence: high-flown style; excessive use of verbal ornamentation

Other synonyms of grandiosity include grandiloquence, ornateness, rhetoric.

grandiosity (noun)	magniloquence (noun)
high-flown style; excessive use of verbal ornamentation	high-flown style; excessive use of verbal ornamentation