Breadcrumb Home > Thesaurus > P Synonyms of penetrable Find synonyms for: Adjective 1. penetrable (vs. impenetrable) usage: admitting of penetration or passage into or through; "a penetrable wall"; "penetrable defenses" 2. penetrable, vulnerable (vs. invulnerable) usage: capable of being penetrated; "penetrable defenses" WordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved.Definition and meaning of penetrable (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: spurious Analogy of the Day: Today’s Analogy Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language