WWordGenerator.org GeneratorsWord ListsBlogAboutGenerate a word Home / N / ninetieth ninetieth adjectivenoun /naɪ/ 3 syllables 9 letters Scrabble 12 WWF 13 Definitions adjective the ordinal number of ninety in counting order 90th noun position 90 in a countable series of things Look “ninetieth” up elsewhere Wiktionary ↗ Merriam-Webster ↗ Etymonline ↗ Dictionary.com ↗ Want another word?Spin the dictionary for a fresh one. Generate a word →