/ Thesaurus / L Synonyms of ladder proof Find synonyms for: Adjective1. runproof, ladder-proof, run-resistant, impervious (vs. pervious), imperviableusage: (of hosiery) resistant to runs or (in Britain) laddersWordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: magnanimous Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language