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Synonyms

protuberant

American  
[proh-too-ber-uhnt, -tyoo-, pruh-] / proʊˈtu bər ənt, -ˈtyu-, prə- /

adjective

  1. bulging out beyond the surrounding surface; protruding; projecting.

    protuberant eyes.


protuberant British  
/ prəˈtjuːbərənt /

adjective

  1. swelling out from the surrounding surface; bulging

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Other Word Forms

  • nonprotuberant adjective
  • nonprotuberantly adverb
  • protuberance noun
  • protuberantly adverb
  • unprotuberant adjective
  • unprotuberantly adverb

Etymology

Origin of protuberant

1640–50; < Late Latin prōtūberant- (stem of prōtūberāns ), present participle of prōtūberāre to swell. See pro- 1, tuber 1, -ant

Explanation

If something is protuberant, it juts or bulges out, like Santa Claus's famously protuberant belly. You might find your small dog adorable, with her flat nose and protuberant eyes, while your brother prefers the family cat. Something that's protuberant can also be called a protuberance, and we can trace both words back to the Late Latin protuberare, "to swell or bulge," from the roots pro, "forward," and tuber, "lump or swelling."

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Vocabulary lists containing protuberant

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

The bumps push out candy-striped and aproned gowns; they are exaggerated by belted waists, and one particularly protuberant tummy doubles as a perch for a parakeet.

From Slate • Jul. 21, 2025

He wrote that Carl Yastrzemski, “like so many great hitters, has oddly protuberant eyes.”

From New York Times • May 20, 2022

They’re absolute eye candy, the kind of bud that does it for the ’Gram — great pops of frilly color, their protuberant, pollen-gilded anthers sticking out like … well, exactly what they are.

From Washington Post • Feb. 3, 2022

He has a long face and long, wavy brown hair parted at the crest; his chin is protuberant and cratered by a dimple the size of Chicxulub.

From The New Yorker • Apr. 15, 2019

Mr. Sen, a short, stocky man with slightly protuberant eyes and glasses with black rectangular frames, had been there, too.

From "Interpreter of Maladies" by Jhumpa Lahiri