underside

noun

un·​der·​side ˈən-dər-ˌsīd How to pronounce underside (audio)
ˌən-dər-ˈsīd
Synonyms of undersidenext
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

Synonyms of underside

Examples of underside in a Sentence

the underside of the table The book explores the underside of human nature.
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.
For larger branches, start with a small cut on the underside of the branch a few inches away from the trunk, says Chisholm. Rae Ford, Martha Stewart, 21 Feb. 2026 Narratives Waymo provided on other collisions include one in which a speed bump hit the underside of one of its vehicles on southbound I-35 Frontage Road near East 51st Street. Andrea Guzmán, Austin American Statesman, 18 Feb. 2026 Gently support the underside of each leaf with one hand while wiping the top, avoiding excessive pressure that could damage delicate leaves. Jessica Safavimehr, Southern Living, 17 Feb. 2026 There’s also evidence that ancient snow travelers used climbing skins — animal skins fixed to the underside of the skis — for uphill travel. Evan Bush, NBC news, 15 Feb. 2026 See All Example Sentences for underside

Word History

First Known Use

1660, in the meaning defined at sense 1

Time Traveler
The first known use of underside was in 1660

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Cite this Entry

“Underside.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/underside. Accessed 25 Feb. 2026.

Kids Definition

underside

noun
un·​der·​side ˈən-dər-ˌsīd How to pronounce underside (audio)
ˌən-dər-ˈsīd
: the side or part lying underneath

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