/ Thesaurus / A Synonyms of air mattress Find synonyms for: Noun1. air mattress, mattressusage: a mattress that can be stored flat and inflated for useWordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: nefarious Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language