puffiness vs pretentiousness

puffiness and pretentiousness both are nouns.

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

As nouns, puffiness and pretentiousness are synonyms defined as:

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

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

puffiness (noun)	pretentiousness (noun)
lack of elegance as a consequence of being pompous and puffed up with vanity	the quality of being pretentious (behaving or speaking in such a manner as to create a false appearance of great importance or worth)
an abnormal protuberance or localized enlargement	lack of elegance as a consequence of being pompous and puffed up with vanity