WWordGenerator.org GeneratorsWord ListsBlogAboutGenerate a word Home / O / on the sly on the sly adverb 10 letters Scrabble 14 WWF 14 Definitions adverb in a furtive manner furtively Look “on the sly” up elsewhere Wiktionary ↗ Merriam-Webster ↗ Etymonline ↗ Dictionary.com ↗ Want another word?Spin the dictionary for a fresh one. Generate a word →