WWordGenerator.org GeneratorsWord ListsBlogAboutGenerate a word Home / S / substantiating substantiating adjective 14 letters Scrabble 17 WWF 22 Definitions adjective serving to support or corroborate collateralconfirmativeconfirmatoryconfirmingcorroborativecorroboratorysubstantiativevalidating Look “substantiating” up elsewhere Wiktionary ↗ Merriam-Webster ↗ Etymonline ↗ Dictionary.com ↗ Want another word?Spin the dictionary for a fresh one. Generate a word →