mistiness vs vapourousness

mistiness and vapourousness both are nouns.

Word	Noun	Adjective	Verb	Adverb
mistiness	Yes	No	No	No
vapourousness	Yes	No	No	No

As nouns, mistiness and vapourousness are synonyms defined as:

mistiness and vapourousness: cloudiness resulting from haze or mist or vapor

Other synonyms of mistiness include haziness, steaminess, vaporousness.

mistiness (noun)	vapourousness (noun)
cloudiness resulting from haze or mist or vapor	cloudiness resulting from haze or mist or vapor