/ Thesaurus / 6 Synonyms of 6th Find synonyms for: Adjective1. sixth, 6th, ordinal (vs. cardinal)usage: coming next after the fifth and just before the seventh in positionWordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: nefarious Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language