fattiness

noun

fat·​ti·​ness
|ēnə̇s
|in-
plural -es
Synonyms of fattinessnext
: the quality or state of being fatty
made ill by the excessive fattiness of the meal
made greasy by the fattiness of the wool

The Ultimate Dictionary Awaits

Expand your vocabulary and dive deeper into language with Merriam-Webster Unabridged.

  1. Expanded definitions
  2. Detailed etymologies
  3. Advanced search tools
  4. All ad-free

Discover what makes Merriam-Webster Unabridged the essential choice for true word lovers.

Start Your Free Trial Now

Cite this Entry

“Fattiness.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/fattiness. Accessed 21 Dec. 2025.

More from Merriam-Webster on fattiness

Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!