vaporousness vs cloudiness

vaporousness and cloudiness both are nouns.

Word	Noun	Adjective	Verb	Adverb
vaporousness	Yes	No	No	No
cloudiness	Yes	No	No	No

As nouns, cloudiness is a hypernym of vaporousness; that is, cloudiness is a word with a broader meaning than vaporousness:

Other hypernyms of vaporousness include muddiness, murkiness.

vaporousness (noun)	cloudiness (noun)
cloudiness resulting from haze or mist or vapor	the quality of being cloudy
	the state of the sky when it is covered by clouds
	gloomy semidarkness caused by cloud cover