disparagement vs gasbag

disparagement and gasbag both are nouns.

Word	Noun	Adjective	Verb	Adverb
disparagement	Yes	No	No	No
gasbag	Yes	No	No	No

disparagement (noun)	gasbag (noun)
the act of speaking contemptuously of	the bag containing the gas in a balloon
a communication that belittles somebody or something	a boring person who talks a great deal about uninteresting topics