WWordGenerator.org GeneratorsWord ListsBlogAboutGenerate a word Home / A / argillaceous argillaceous adjective /ɑrdʒəleɪʃəs/ 4 syllables 12 letters Scrabble 15 WWF 20 Definitions adjective resembling or containing clay “argillaceous rocks” clayey Look “argillaceous” up elsewhere Wiktionary ↗ Merriam-Webster ↗ Etymonline ↗ Dictionary.com ↗ Want another word?Spin the dictionary for a fresh one. Generate a word →