impervious
im·per·vious
adjective
Origin
From Latin impervius (“that cannot be passed through”), from in- (“not”) + pervius (“letting things through”).
Related words
Word family
See also
WordNet 2.1 (Princeton University). Wiktionary (CC BY-SA). CMU Pronouncing Dictionary. WordNet 2.1 Copyright Princeton University. All rights reserved. Wiktionary content is available under the Creative Commons Attribution-ShareAlike Licence.