stuffiness vs stodginess

stuffiness and stodginess both are nouns.

Word	Noun	Adjective	Verb	Adverb
stuffiness	Yes	No	No	No
stodginess	Yes	No	No	No

As nouns, stuffiness and stodginess are synonyms defined as:

stuffiness (noun)	stodginess (noun)
dull and pompous gravity	dull and pompous gravity
the quality of being close and poorly ventilated
state of obstruction or stoppage or air in the nose or throat