Breadcrumb Home > Thesaurus > M Synonyms of mumpsimus Find synonyms for: Noun 1. mumpsimus, notion usage: a traditional notion that is obstinately held although it is unreasonable; "he still holds to the old mumpsimus that a woman's place is in the kitchen" WordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved.Definition and meaning of mumpsimus (Dictionary) TrendingHere are the facts and trivia that people are buzzing about. Chinese New Year History, Meaning, and Celebrations Current Events This Week: February 2024 Valentine's Day Valentine's Day History Mardi Gras 30 "Charlie and the Chocolate Factory" Quotes ✖ Related Content Daily Word Quiz: calumny Analogy of the Day: Today’s Analogy Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language