Breadcrumb Home > Thesaurus > I Synonyms of indeterminable Find synonyms for: Adjective 1. indeterminable (vs. determinable), undeterminable, indeterminate, unascertainable, undiscoverable, unpredictable, incalculable, indeterminate#1, undetermined usage: not capable of being definitely decided or ascertained 2. indeterminable, incalculable (vs. calculable) usage: incapable of being definitely ascertained WordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved.Definition and meaning of indeterminable (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: skein Analogy of the Day: Today’s Analogy Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language