fat·​ty | \ ˈfa-tē How to pronounce fatty (audio) \
fattier; fattiest

Definition of fatty

 (Entry 1 of 2)

1 : containing fat especially in unusual amounts fatty foods also : unduly stout : corpulent
2 : greasy
3 : derived from or chemically related to fat


plural fatties

Definition of fatty (Entry 2 of 2)

: one that is fat especially, disparaging + offensive : an overweight person

Other Words from fatty


fattiness noun

Synonyms & Antonyms for fatty

Synonyms: Adjective

Antonyms: Adjective

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Examples of fatty in a Sentence

Adjective I try to avoid fatty foods. fatty ground beef that was the cheapest available
Recent Examples on the Web: Adjective Some emerging evidence suggests supplements of Omega 3 fatty acids could be helpful for patients with smell dysfunction. Evan Bush, NBC News, 27 July 2022 It's made with peptides, fatty acids, squalane, and more niacinamide. Megan Decker, refinery29.com, 27 July 2022 Xylella makes complex fatty acids called lipids to use as key signaling molecules, and the trees manufacture their own lipids in response to infection. Maddie Bender, Scientific American, 20 July 2022 To help with dry skin and scalp, essential fatty acids found in avocado and oily fish, like salmon, are helpful. Harper's Bazaar Staff, Harper's BAZAAR, 19 July 2022 This could be caused by an impaired skin barrier or a dysfunction or deficiency in the necessary healthy fats in the top layer of the skin (like cholesterol, fatty acids, and ceramides). Hannah Dylan Pasternak, SELF, 19 July 2022 Unlike fatty pigs, bony chickens, and sinewy monkeys, eel meat was almost all soft skeletal muscle. Manvir Singh, Wired, 14 July 2022 Its fatty richness provides the perfect contrast to the lean, sweet, crisp melon. Los Angeles Times, 13 July 2022 These non-greasy formulas are watery, bouncy, weightless, and completely absorb in just a few minutes — in other words, these gel-like formulas are free of the fatty ingredients that make creams, well, creamy. Kaleigh Fasanella, Allure, 7 July 2022 Recent Examples on the Web: Noun In recent years, coconut oil had been given a pass because of its unique fatty profile. Ashley Weatherford, The Cut, 19 June 2017 See More

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'fatty.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

First Known Use of fatty


14th century, in the meaning defined at sense 1


1797, in the meaning defined above

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Time Traveler for fatty

Time Traveler

The first known use of fatty was in the 14th century

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Dictionary Entries Near fatty

Fat Tuesday


fatty acid

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Statistics for fatty

Last Updated

5 Aug 2022

Cite this Entry

“Fatty.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/fatty. Accessed 15 Aug. 2022.

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More Definitions for fatty


fat·​ty | \ ˈfa-tē How to pronounce fatty (audio) \
fattier; fattiest

Kids Definition of fatty

: containing or like fat


fat·​ty | \ ˈfat-ē How to pronounce fatty (audio) \
fattier; fattiest

Medical Definition of fatty

1a : unduly stout : corpulent
b : marked by an abnormal deposit of fat a fatty liver fatty cirrhosis
2 : derived from or chemically related to fat

Other Words from fatty

fattiness noun

More from Merriam-Webster on fatty

Nglish: Translation of fatty for Spanish Speakers

Britannica English: Translation of fatty for Arabic Speakers


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