Breadcrumb Home > Thesaurus > U Synonyms of underarm Find synonyms for: Adjective 1. underhand (vs. overhand), underhanded, underarm usage: with hand brought forward and up from below shoulder level; "an underhand pitch"; "an underhand stroke" Adverb 1. underarm, underhand usage: with the hand swung below shoulder level; "throwing a ball underarm" WordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved.Definition and meaning of underarm (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: epicene Analogy of the Day: Today’s Analogy Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language