Breadcrumb Home > Thesaurus > O Synonyms of optimism Find synonyms for: Noun 1. optimism, hope usage: the optimistic feeling that all is going to turn out well 2. optimism, disposition, temperament usage: a general disposition to expect the best in all things WordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved.Definition and meaning of optimism (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: variegate Analogy of the Day: Today’s Analogy Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language