WWordGenerator.org GeneratorsWord ListsBlogAboutGenerate a word Home / I / instantaneous instantaneous adjective 13 letters Scrabble 13 WWF 17 Definitions adjective occurring with no delay “relief was instantaneous” instant Look “instantaneous” up elsewhere Wiktionary ↗ Merriam-Webster ↗ Etymonline ↗ Dictionary.com ↗ Want another word?Spin the dictionary for a fresh one. Generate a word →