/ Thesaurus / W Synonyms of whitsun monday Find synonyms for: Noun1. Whitmonday, Whitsun Monday, Monday, Monusage: the day after Whitsunday; a legal holiday in England and Wales and IrelandWordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: apiary Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language