miasmic vs vapourous

miasmic and vapourous both are adjectives.

Word	Noun	Adjective	Verb	Adverb
miasmic	No	Yes	No	No
vapourous	No	Yes	No	No

As adjectives, miasmic and vapourous are synonyms defined as:

Other synonyms of miasmic include miasmal, vaporous.

miasmic (adjective)	vapourous (adjective)
filled with vapor	filled with vapor
of noxious stench from atmospheric pollution	resembling or characteristic of vapor
	so thin as to transmit light