as in underside
the side or part facing downward from something
painted the undersurface of the plane blue
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Recent Examples of undersurface
Pale green eggs are laid in clusters near the food source with each egg suspended at the end of slender silken threads attached to the undersurface of a leaf.
—
Rita Perwich, San Diego Union-Tribune, 1 July 2023
Scientists observed a beetle walking upside-down on the undersurface of a pool of water.
—New York Times, 26 July 2021
The spots enlarge and are mirrored on the undersurface of the leaf with a white downy growth.
—The Editors Of Organic Life, Good Housekeeping, 21 July 2015
Rita Perwich, San Diego Union-Tribune, 1 July 2023
Scientists observed a beetle walking upside-down on the undersurface of a pool of water.
—New York Times, 26 July 2021
The spots enlarge and are mirrored on the undersurface of the leaf with a white downy growth.
—The Editors Of Organic Life, Good Housekeeping, 21 July 2015
Recent Examples of Synonyms for undersurface
Noun
-
As VideoCardz reports, this reduces material usage, making the boards cheaper to produce, and also has the nice-to-have benefit of making the underside of the motherboards far less sharp, hopefully leading to fewer nicked fingers.—
Jon Martindale,
PC Magazine,
27 Apr. 2026
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At ground level, the building feels almost improbably large, much of its underside shaded.—
Ariana Marsh,
Vogue,
21 Apr. 2026
Noun
-
Be sure to use the slider at the bottom of the page if their answers don’t fit the screen on your device.—
Mark Dee
April 29,
Idaho Statesman,
29 Apr. 2026
-
Take the time to scan from top to bottom, and don’t be afraid to gently move items aside.—
Elizabeth Fogarty,
Better Homes & Gardens,
29 Apr. 2026
Cite this Entry
“Undersurface.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/undersurface. Accessed 1 May. 2026.
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