/ Thesaurus / U Synonyms of umptieth Find synonyms for: Adjective1. umpteenth, umteenth, umptieth, ordinal (vs. cardinal)usage: last in an indefinitely numerous seriesWordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: philanthropy Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language