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 wand beeped, indicating that the fish carried a tag that Ward or a colleague had inserted into its underside during a previous capture.
—
Brandon Loomis, AZCentral.com, 15 Dec. 2025
There was evidence of bleaching due to light exposure, with some hairs appearing a light straw color, while their underside was brown.
—Ashley Strickland, CNN Money, 12 Dec. 2025
Currently being developed by scientists at Saudi Arabia's King Abdullah University of Science and Technology (KAUST), the device features an array of tiny, porous, hollow microneedles on its underside.
—New Atlas, 12 Dec. 2025
The rubber strap features a lunar surface pattern on the underside.
—Melissa Fleur Afshar, MSNBC Newsweek, 10 Dec. 2025
See All Example Sentences for underside
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Brandon Loomis, AZCentral.com, 15 Dec. 2025
There was evidence of bleaching due to light exposure, with some hairs appearing a light straw color, while their underside was brown.
—Ashley Strickland, CNN Money, 12 Dec. 2025
Currently being developed by scientists at Saudi Arabia's King Abdullah University of Science and Technology (KAUST), the device features an array of tiny, porous, hollow microneedles on its underside.
—New Atlas, 12 Dec. 2025
The rubber strap features a lunar surface pattern on the underside.
—Melissa Fleur Afshar, MSNBC Newsweek, 10 Dec. 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 18 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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