/ Thesaurus / 5 Synonyms of 5th Find synonyms for: Adjective1. fifth, 5th, ordinal (vs. cardinal)usage: coming next after the fourth and just before the sixth in positionWordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: torrid Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language