as in aquatic
living, lying, or occurring below the surface of the water
underwater plants don't require as much light to grow as surface plants a vessel designed for underwater exploration
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Example Sentences
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Recent Examples of underwater
In fact, most of the planet’s volcanic activity takes place within underwater spreading centers such as the Juan de Fuca Ridge, which experiences multiple, small volcanic eruptions each day, Kelley said.
—
Kameryn Griesser, CNN Money, 8 May 2025
About 300 miles off the coast of Oregon, an underwater volcano appears to be rumbling to life.
—Denise Chow, NBC news, 8 May 2025
Without otters, urchin populations can explode, damaging the underwater jungles that provide food and shelter for countless creatures.
—Avery Schuyler Nunn, Smithsonian Magazine, 30 Apr. 2025
This heavy iron absorbed blue light, meanwhile, the red wavelength was absorbed by the water, leaving green light to dominate the underwater view.
—New Atlas, 27 Apr. 2025
See All Example Sentences for underwater
Kameryn Griesser, CNN Money, 8 May 2025
About 300 miles off the coast of Oregon, an underwater volcano appears to be rumbling to life.
—Denise Chow, NBC news, 8 May 2025
Without otters, urchin populations can explode, damaging the underwater jungles that provide food and shelter for countless creatures.
—Avery Schuyler Nunn, Smithsonian Magazine, 30 Apr. 2025
This heavy iron absorbed blue light, meanwhile, the red wavelength was absorbed by the water, leaving green light to dominate the underwater view.
—New Atlas, 27 Apr. 2025
See All Example Sentences for underwater
Recent Examples of Synonyms for underwater
Adjective
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The microbial fuel cells sit in a nearby waterway, amongst aquatic grass, delivering the power.—
James Morris,
Forbes.com,
10 May 2025
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Both aquatic features will be open from 9 a.m.-8 p.m. daily from Saturday through Sept. 21.—
NWA Democrat-Gazette,
Arkansas Online,
8 May 2025
Adjective
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Courtney has been pushing the Navy to adopt measures to expand what has become known as the submarine industrial base.—
Edmund H. Mahony,
Hartford Courant,
30 Apr. 2025
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It is expected the Chinese submarine force to grow to 65 boats by 2025 and 80 by 2035 because of an expansion of submarine construction capacity.—
Anders Fogh Rasmussen,
Newsweek,
4 Feb. 2025
Adjective
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The submerged vehicle’s occupants were freed but still in the water by the time emergency responders arrived at the scene, the department added.—
David Chiu,
People.com,
19 May 2025
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In 2001, Oakland Park resident Heather Munroe died in a submerged van that was driven into the river there at about 2 a.m. after leaving now-closed Maguire’s Hill 16.—
Angie DiMichele,
Sun Sentinel,
12 May 2025
Cite this Entry
“Underwater.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/underwater. Accessed 24 May. 2025.
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