/ Thesaurus / M Synonyms of mullioned Find synonyms for: Adjective1. mullioned, divided (vs. united)usage: of windows; divided by vertical bars or piers usually of stone; "mullioned windows"WordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: procrastinate Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language