UNDERMOST Synonyms: 32 Similar and Opposite Words

undermost

adjective

ˈən-dər-ˌmōst

Definition of undermost

as in lower

of, relating to, or located at the bottom the undermost layer of the mattress filling should provide firm back support

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Example Sentences

Recent Examples of Synonyms for undermost

Adjective

Despite those lower court rulings, the practice has continued nationally, said Gregory Chen, the senior director of government relations for the Immigration Lawyers Association.

— Seth Klamann, Denver Post, 3 Sep. 2025
And ultimately, the Supreme Court overruled those lower court rulings and did declare the embryos as children qualifying under the wrongful death statute.

— Dana Taylor, USA TODAY, 1 Mar. 2024

Definition of lower

Adjective

From now on, the champions of the second-tier WSL2 will win automatic promotion and the bottom WSL team will be automatically relegated.

— Megan Feringa, New York Times, 4 Sep. 2026
Zack Gelof hit a solo homer for the A's in the first, but the Mariners responded with a three-run bottom half of the inning.

— ABC News, ABC News, 4 Sep. 2026

Definition of bottom

Adjective

The developers say automating pollination could reduce the need for manual labor, lower breeding costs, and improve the efficiency of hybrid breeding.

— Jijo Malayil, Interesting Engineering, 9 Sep. 2026
Current market pricing suggests low odds of a rate hike at its September meeting.

— Jenni Reid, CNBC, 9 Sep. 2026

Definition of low

Adjective

But others have argued that the helium-3 could instead be coming from somewhere deep and stable in the lowermost mantle.

— Quanta Magazine, Quanta Magazine, 4 Aug. 2025
In the 1920s, a surgeon named Frederick Barrington, of University College London, went looking for the on-off switch in the brainstem, the lowermost part of the brain that connects with the spinal cord.

— Emily Underwood, Smithsonian Magazine, 5 June 2024

Definition of lowermost

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Browse Nearby Words

undermining

undermost

underneath

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“Undermost.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/undermost. Accessed 10 Sep. 2026.

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Synonyms of undermost

adjective

Example Sentences

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