underbelly

noun

un·​der·​bel·​ly ˈən-dər-ˌbe-lē How to pronounce underbelly (audio)
Synonyms of underbellynext
1
: a vulnerable area
also : a corrupt or sordid part
probing the underbelly of the entertainment industry
2
: the underside of a body or mass

Examples of underbelly in a Sentence

They exposed the underbelly of the nation's economic policy. the sordid underbelly of city life
Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
Their first album in four years, Dancing on the Wall, reflects a group that's been famous long enough to know what a golden goose’s underbelly looks like. Nina Corcoran, Pitchfork, 8 May 2026 Derrek Miranda, the man behind the Whitewallstuntz social media accounts that gained popularity in the last year documenting Los Angeles’ underbelly, said his Instagram account was deactivated after posting a video of the April 25 speed run. James Queally, Los Angeles Times, 8 May 2026 In New Mexico, where Arakawa and Hackman lived, the most common carrier of hantavirus is the deer mouse, a small creature with a white underbelly, large eyes and oversize ears. Evan Bush, NBC news, 4 May 2026 The most caustic people in the world often have the softest underbellies — at least if Alden Ehrenreich is playing them. Jackson McHenry, Vulture, 29 Apr. 2026 See All Example Sentences for underbelly

Word History

First Known Use

1942, in the meaning defined at sense 1

Time Traveler
The first known use of underbelly was in 1942

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Cite this Entry

“Underbelly.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/underbelly. Accessed 15 May. 2026.

Kids Definition

underbelly

noun
un·​der·​bel·​ly ˈən-dər-ˌbel-ē How to pronounce underbelly (audio)
: the underpart of a body or mass
the underbelly of a bomber
also : an area open to attack or damage
the army's underbelly
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