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

The engines are linked through a complicated arrangement of shafts and belt drives, with the bottom three connected by a central shaft and the remaining two brought into the equation through separate belt drives.

— New Atlas, New Atlas, 6 Nov. 2026
Voting was very tight for teams in the bottom six, with only 31 points separating numbers 11 through 16.

— Chris Hays, The Orlando Sentinel, 5 Nov. 2026

Definition of bottom

Adjective

According to the cooperative, its Co+op Basics products, of which Field Day is a part, already offer prices up to 30% lower than comparable name-brand organic, natural, fair trade and non-GMO products.

— Sean Timberlake, Sacbee.com, 4 Nov. 2026
Cothiere garnered a much lower vote share than Wilson did in the crowded eight-person August primary to Wilson.

— Austin Horn, Miami Herald, 4 Nov. 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 Nov. 2026.

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Synonyms of undermost

adjective

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