/ Thesaurus / S Synonyms of sunday clothes Find synonyms for: Noun1. Sunday best, Sunday clothes, fineryusage: the best attire you have which is worn to church on SundayWordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: loathe Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language