/ Thesaurus / J Synonyms of jumped up Find synonyms for: Adjective1. jumped-up, pretentious (vs. unpretentious)usage: (British informal) upstartWordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: pristine Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language