/ Thesaurus / M Synonyms of miasmal Find synonyms for: Adjective1. miasmal, miasmic, vaporous, vapourous, cloudy (vs. clear)usage: filled with vapor; "miasmic jungles"; "a vaporous bog"WordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: abdicate Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language