/ Thesaurus / C Synonyms of cloud nine Find synonyms for: Noun1. bliss, blissfulness, cloud nine, seventh heaven, walking on air, elationusage: a state of extreme happinessWordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: quandary Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language