underpinning
noun
un·der·pin·ning
ˈən-dər-ˌpi-niŋ 
1
: the material and construction (such as a foundation) used for support of a structure
2
3
: underwear
—usually used in plural
4
: a person's legs
—usually used in plural
Examples of underpinning in a Sentence
the underpinnings of the theory have recently been called into question
the underpinnings of the bridge were seriously damaged in the collision
Recent Examples on the Web
Trump has alluded to the political underpinnings of the influx.
—
Cleve R. Wootson Jr. The Washington Post, Arkansas Online, 25 Mar. 2026
And yet, while the NCAA Tournament retains its traditional trappings and brackets and upsets keep the country entranced, the underpinnings of college basketball are totally different.
—Jim Alexander, Oc Register, 23 Mar. 2026
The movie does attempt to gesture at class and race as thematic underpinnings (the maids trapped in The Virgil are mostly non-white, while the villains are rich Caucasians), but like the story and action at large, these go pretty much nowhere, and feel like obligatory symbols.
—Siddhant Adlakha, Variety, 18 Mar. 2026
And an underpinning of loneliness and suppressed yearning.
—Todd Martens, Los Angeles Times, 18 Mar. 2026
See All Example Sentences for underpinning
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Cleve R. Wootson Jr. The Washington Post, Arkansas Online, 25 Mar. 2026
And yet, while the NCAA Tournament retains its traditional trappings and brackets and upsets keep the country entranced, the underpinnings of college basketball are totally different.
—Jim Alexander, Oc Register, 23 Mar. 2026
The movie does attempt to gesture at class and race as thematic underpinnings (the maids trapped in The Virgil are mostly non-white, while the villains are rich Caucasians), but like the story and action at large, these go pretty much nowhere, and feel like obligatory symbols.
—Siddhant Adlakha, Variety, 18 Mar. 2026
And an underpinning of loneliness and suppressed yearning.
—Todd Martens, Los Angeles Times, 18 Mar. 2026
See All Example Sentences for underpinning
Cite this Entry
“Underpinning.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/underpinning. Accessed 5 Apr. 2026.
Copy CitationKids Definition
underpinning
noun
un·der·pin·ning
ˈən-dər-ˌpin-iŋ
1
: the foundation used for support of a structure
2
3
: a person's legs
—usually used in plural
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