WWordGenerator.org GeneratorsWord ListsBlogAboutGenerate a word Home / I / invalidation invalidation noun 12 letters Scrabble 16 WWF 20 Definitions noun a formal termination (of a relationship or a judicial proceeding etc) annulment Look “invalidation” up elsewhere Wiktionary ↗ Merriam-Webster ↗ Etymonline ↗ Dictionary.com ↗ Want another word?Spin the dictionary for a fresh one. Generate a word →