Breadcrumb Home > Thesaurus > I Synonyms of indecipherable Find synonyms for: Adjective 1. indecipherable, unclear, undecipherable, unreadable, illegible (vs. legible) usage: not easily deciphered; "indecipherable handwriting" 2. indecipherable, incomprehensible (vs. comprehensible), uncomprehensible usage: impossible to determine the meaning of; "an indecipherable message" WordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved.Definition and meaning of indecipherable (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: catalpa Analogy of the Day: Today’s Analogy Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language