Breadcrumb Home > Thesaurus > F Cite Synonyms of fatuous Find synonyms for: Adjective1. asinine, fatuous, inane, mindless, vacuous, foolish (vs. wise)usage: devoid of intelligenceWordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved.Definition and meaning of fatuous (Dictionary) TrendingHere are the facts and trivia that people are buzzing about. April 2021 Current Events: US News The Berlin Conference and the Partition of Africa The Implied Powers of Congress Noble Titles and Ranks in a Monarchy Keeping Your Brain Active in a COVID-19 World Quetzalcoatl: Aztec Myths and Myths About the Aztecs Related Content Daily Word Quiz: mantra Analogy of the Day: Today’s Analogy Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language