/ Thesaurus / N Synonyms of nondigestible Find synonyms for: Adjective1. nondigestible, indigestible (vs. digestible)usage: not digestibleWordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: blithesome Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language