/ Thesaurus / P Synonyms of permeableness Find synonyms for: Noun1. permeability, permeableness, porosity, porousnessusage: the property of something that can be pervaded by a liquid (as by osmosis or diffusion)WordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: philanthropy Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language