underside
noun
un·der·side
ˈən-dər-ˌsīd 
ˌən-dər-ˈsīd
1
: the side or surface lying underneath
2
: a side usually hidden from sight
specifically
: the more unpleasant or reprehensible side
the underside of politics
Examples of underside in a Sentence
the underside of the table
The book explores the underside of human nature.
Recent Examples on the Web
The rubber strap features a lunar surface pattern on the underside.
—
Melissa Fleur Afshar, MSNBC Newsweek, 10 Dec. 2025
Tej’s stubble comes in at the underside of his jaw.
—Literary Hub, 10 Dec. 2025
As your meal simmers, steam carries aromatic oils and spices into every part of the appliance—especially the ceramic insert, the underside of the lid, and the rubber gasket.
—Katie Rosenhouse, Southern Living, 1 Dec. 2025
According to the mantle wave theory, the breakup of continents causes hot, dense rock to pull away from the underside of tectonic plates gradually.
—Mrigakshi Dixit, Interesting Engineering, 26 Nov. 2025
See All Example Sentences for underside
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Melissa Fleur Afshar, MSNBC Newsweek, 10 Dec. 2025
Tej’s stubble comes in at the underside of his jaw.
—Literary Hub, 10 Dec. 2025
As your meal simmers, steam carries aromatic oils and spices into every part of the appliance—especially the ceramic insert, the underside of the lid, and the rubber gasket.
—Katie Rosenhouse, Southern Living, 1 Dec. 2025
According to the mantle wave theory, the breakup of continents causes hot, dense rock to pull away from the underside of tectonic plates gradually.
—Mrigakshi Dixit, Interesting Engineering, 26 Nov. 2025
See All Example Sentences for underside
Cite this Entry
“Underside.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/underside. Accessed 15 Dec. 2025.
Copy CitationKids Definition
underside
noun
un·der·side
ˈən-dər-ˌsīd
ˌən-dər-ˈsīd
: the side or part lying underneath
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