Breadcrumb Home > Thesaurus > R Synonyms of rationality Find synonyms for: Noun 1. rationality, reason, reasonableness, sanity, saneness usage: the state of having good sense and sound judgment; "his rationality may have been impaired"; "he had to rely less on reason than on rousing their emotions" 2. rationality, rationalness, logicality, logicalness usage: the quality of being consistent with or based on logic WordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved.Definition and meaning of rationality (Dictionary) TrendingHere are the facts and trivia that people are buzzing about. Chinese New Year History, Meaning, and Celebrations Current Events This Week: February 2024 Valentine's Day Valentine's Day History Mardi Gras 30 "Charlie and the Chocolate Factory" Quotes ✖ Related Content Daily Word Quiz: triumphalism Analogy of the Day: Today’s Analogy Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language