Breadcrumb Home > Thesaurus > N Cite Synonyms of ninety one Find synonyms for: Adjective1. ninety-one, 91, xci, cardinal (vs. ordinal)usage: being one more than ninetyWordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. TrendingHere are the facts and trivia that people are buzzing about. January 2021 Current Events: US News The Holocaust (1933–1945) Chinese New Year History, Meaning, and Celebrations Noble Titles and Ranks in a Monarchy The 5 Best Air Purifiers of 2020 Inaugural Trivia Related Content Daily Word Quiz: obviate Analogy of the Day: Today’s Analogy Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language