fat·​ty | \ ˈfa-tē \
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

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Other Words from fatty


fattiness noun

Synonyms & Antonyms for fatty

Synonyms: Adjective


Antonyms: Adjective

defatted, lean

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Examples of fatty in a Sentence


I try to avoid fatty foods. fatty ground beef that was the cheapest available

Recent Examples on the Web: Adjective

Regularly taking excessively long showers or baths is one potential problem, since that can strip away natural oils from your skin’s lipid barrier, the fatty outer layer that keeps moisture in and irritants and allergens out. Carolyn L. Todd, SELF, "How Often Should You Really Shower?," 10 Jan. 2019 Your favorite lip balm might be made from a fatty substance extracted from sheep's wool. Jenna Rosenstein, Harper's BAZAAR, "The Best Vegan and Cruelty-Free Makeup," 29 Nov. 2018 Theoretically, eliminating behavioral contributors to heart disease, like smoking or eating fatty foods, is the best public health intervention against heart disease — but that’s a lot easier said than done. Abigail Higgins, Vox, "Heart disease used to be an ailment of the rich. But it’s now striking the world’s poor.," 15 Oct. 2018 Turn off heat and add ham hock, with its fattiest side up, to the pot, then surround it with the carrots and onion. Bethany Jean Clement, The Seattle Times, "Taking stock: The story of an accidental, excellent post-Thanksgiving recipe," 14 Nov. 2018 Nearly one in every three American adults has high levels of LDL, the AHA says, which contributes to buildup of fatty plaque and narrowing of the arteries. Betsy Mckay, WSJ, "New Guidelines for Treating High Cholesterol Take a Personal Approach," 10 Nov. 2018 As for the myth that fatty areas of the body are less painful—not necessarily true. 7. Hannah Dylan Pasternak, SELF, "8 Things You Should Definitely Know Before You Get Your First Tattoo," 31 Oct. 2018 There are indications the mammals are not able to get enough of the large, fatty Chinook salmon that make up their main diet. Kathleen Joyce, Fox News, "Devastating photos show grieving orca pushing dead calf to water surface for two days," 27 July 2018 Nobody does poutine like Cured, built with cheese curds, pickled cauliflower and pork’s answer to barbacoa, tender and fatty with a braising liquid that doubles as gravy. Mike Sutter, San Antonio Express-News, "Review: Cured makes a 3½-star statement at the Pearl," 28 June 2018

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, "Coconut Oil Is Actually Terrible for Your Health," 19 June 2017

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.

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First Known Use of fatty


14th century, in the meaning defined at sense 1


1797, in the meaning defined above

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Statistics for fatty

Last Updated

15 Jan 2019

Look-up Popularity

Time Traveler for fatty

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

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More Definitions for fatty



English Language Learners Definition of fatty

: containing fat and especially a large amount of fat


fat·​ty | \ ˈfa-tē \
fattier; fattiest

Kids Definition of fatty

: containing or like fat


fat·​ty | \ ˈfat-ē \
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

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More from Merriam-Webster on fatty

Rhyming Dictionary: Words that rhyme with fatty

Thesaurus: All synonyms and antonyms for fatty

Spanish Central: Translation of fatty

Nglish: Translation of fatty for Spanish Speakers

Britannica English: Translation of fatty for Arabic Speakers

Comments on fatty

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marked by shyness and lack of polish

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