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
At the same time, much of the boardwalk ideally would have been underwater.
—
Sammy Roth, Los Angeles Times, 5 June 2025
The search — which involved state wildlife officers, Pueblo County sheriff’s deputies and a crew from the Pueblo West Fire Department — used multiple boats with sonar capabilities, an underwater robot, a drone to scan shorelines and thermal cameras to find the missing fisherman.
—Lauren Penington, Denver Post, 3 June 2025
This can incite large underwater volcanic eruptions, which in turn can cause earthquakes that result in tsunamis.
—Sarah Kuta, Smithsonian Magazine, 29 May 2025
Bali’s most famous dive site, the USAT Liberty Shipwreck, is famous for its soft coral, angelfish, garden eels, and other underwater creatures.
—Acacia Gabriel, Travel + Leisure, 28 May 2025
See All Example Sentences for underwater
Sammy Roth, Los Angeles Times, 5 June 2025
The search — which involved state wildlife officers, Pueblo County sheriff’s deputies and a crew from the Pueblo West Fire Department — used multiple boats with sonar capabilities, an underwater robot, a drone to scan shorelines and thermal cameras to find the missing fisherman.
—Lauren Penington, Denver Post, 3 June 2025
This can incite large underwater volcanic eruptions, which in turn can cause earthquakes that result in tsunamis.
—Sarah Kuta, Smithsonian Magazine, 29 May 2025
Bali’s most famous dive site, the USAT Liberty Shipwreck, is famous for its soft coral, angelfish, garden eels, and other underwater creatures.
—Acacia Gabriel, Travel + Leisure, 28 May 2025
See All Example Sentences for underwater
Recent Examples of Synonyms for underwater
Adjective
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Passing scientists caught the aquatic animal — and discovered a new species.—
Aspen Pflughoeft,
Miami Herald,
3 June 2025
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The chalet feels like a portal to a green aquatic world.—
Chiara Barzini,
Vogue,
3 June 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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Ancient protein fragments within the jaw’s teeth revealed the bone, known as Penghu 1, belonged to a Denisovan man who likely lived on a submerged land bridge that once connected what’s now China and Taiwan.—
Ashley Strickland,
CNN Money,
12 Apr. 2025
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There is nothing glamorous about it, but the reward lies beneath the water in submerged nets dotted with plump oysters.—
Kaila Yu,
Forbes,
30 Nov. 2024
Cite this Entry
“Underwater.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/underwater. Accessed 10 Jun. 2025.
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