Breadcrumb Home > Thesaurus > O Synonyms of outsider Find synonyms for: Noun 1. foreigner, outsider, stranger, alien, unknown usage: someone who is excluded from or is not a member of a group 2. outsider, contestant usage: a contestant (human or animal) not considered to have a good chance to win WordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved.Definition and meaning of outsider (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: antecedent Analogy of the Day: Today’s Analogy Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language