puffiness vs pomposity

puffiness and pomposity both are nouns.

Word	Noun	Adjective	Verb	Adverb
puffiness	Yes	No	No	No
pomposity	Yes	No	No	No

As nouns, puffiness and pomposity are synonyms defined as:

puffiness and pomposity: lack of elegance as a consequence of being pompous and puffed up with vanity

Other synonyms of puffiness include inflation, ostentation, ostentatiousness, pompousness, pretentiousness, splashiness.

puffiness (noun)	pomposity (noun)
lack of elegance as a consequence of being pompous and puffed up with vanity	lack of elegance as a consequence of being pompous and puffed up with vanity
an abnormal protuberance or localized enlargement