WWordGenerator.org GeneratorsWord ListsBlogAboutGenerate a word Home / G / grumbling grumbling adjectivenoun 9 letters Scrabble 15 WWF 22 Definitions adjective continuous full and low-pitched throbbing sound rumbling noun a complaint uttered in a low and indistinct tone grumblemurmurmurmuringmuttermuttering noun a loud low dull continuous noise grumblerumblerumbling Look “grumbling” up elsewhere Wiktionary ↗ Merriam-Webster ↗ Etymonline ↗ Dictionary.com ↗ Want another word?Spin the dictionary for a fresh one. Generate a word →