WWordGenerator.org GeneratorsWord ListsBlogAboutGenerate a word Home / I / impermeableness impermeableness noun /ɪmpɜrmiəbəlnɛs/ 6 syllables 15 letters Scrabble 23 WWF 29 Definitions noun the property of something that cannot be pervaded by a liquid impermeability Look “impermeableness” up elsewhere Wiktionary ↗ Merriam-Webster ↗ Etymonline ↗ Dictionary.com ↗ Want another word?Spin the dictionary for a fresh one. Generate a word →