Breadcrumb Home > Thesaurus > D Synonyms of disappointment Find synonyms for: Noun 1. disappointment, letdown, dissatisfaction usage: a feeling of dissatisfaction that results when your expectations are not realized; "his hopes were so high he was doomed to disappointment" 2. disappointment, dashing hopes, failure usage: an act (or failure to act) that disappoints someone WordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved.Definition and meaning of disappointment (Dictionary) TrendingHere are the facts and trivia that people are buzzing about. Jewish Holidays, 2010-2030 (A.M. 5770-5791) Western Christian Holidays, 2010-2030 12 Steps to a New Year New Year's Resolution to Slim Down? Martin Luther King Speeches Books of the Bible: Old Testament Books in Order ✖ Related Content Daily Word Quiz: fatuous Analogy of the Day: Today’s Analogy Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language