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
Where things get shaky is just about everywhere else, as Malkin’s game at 39 has dramatically fallen off, and the rest of the veterans are going to be underwater against most teams.
—
James Mirtle, New York Times, 8 Oct. 2025
Sun rays reflect light off the underwater quartz particles, making the sand shine upwards onto the water’s surface and creating that signature crystal-clear emerald shade.
—Tara Massouleh McCay, Southern Living, 7 Oct. 2025
Milaidhoo Island, Baa Atol, Maldives June is the beginning of manta ray season in the Maldives, and Baa Atoll’s Hanifaru Bay becomes a swirling underwater ballet.
—Becca Blond, AFAR Media, 7 Oct. 2025
When a big storm hits, Peninsula Hospital could be underwater.
—CNN Money, 5 Oct. 2025
See All Example Sentences for underwater
James Mirtle, New York Times, 8 Oct. 2025
Sun rays reflect light off the underwater quartz particles, making the sand shine upwards onto the water’s surface and creating that signature crystal-clear emerald shade.
—Tara Massouleh McCay, Southern Living, 7 Oct. 2025
Milaidhoo Island, Baa Atol, Maldives June is the beginning of manta ray season in the Maldives, and Baa Atoll’s Hanifaru Bay becomes a swirling underwater ballet.
—Becca Blond, AFAR Media, 7 Oct. 2025
When a big storm hits, Peninsula Hospital could be underwater.
—CNN Money, 5 Oct. 2025
See All Example Sentences for underwater
Recent Examples of Synonyms for underwater
Adjective
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Get Close to Marine Life A visit to the NC Aquarium at Pine Knoll Shores offers the opportunity to get up close to aquatic species, such as river otters and loggerhead sea turtles.—
Jennifer Prince,
Southern Living,
12 Oct. 2025
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For instance, investigating this biomineralization process in organisms like aquatic mosses could open a parallel path toward environmental cleanup.—
Mrigakshi Dixit,
Interesting Engineering,
10 Oct. 2025
Adjective
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Last December, lawmakers passed a short-term funding bill that included $5.7 billion in emergency funding for the submarine industrial base.—
Lisa Hagen,
Hartford Courant,
6 Aug. 2025
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Despite the ongoing retirement of older hulls, the PLAN's submarine force is expected to grow to 65 units by 2025 and 80 units by 2035 due to an expansion of submarine construction capacity.—
Ryan Chan,
MSNBC Newsweek,
29 July 2025
Adjective
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Launched from submerged submarines, the M51 can reach altitudes exceeding 2,000 kilometers and re-enters the atmosphere at speeds up to Mach 20, reflecting France’s focus on precision, reliability, and constant readiness in maintaining its 290-warhead nuclear deterrent.—
Neetika Walter,
Interesting Engineering,
9 Oct. 2025
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Pier 500 would use 124 acres of submerged infrastructure that was added during the construction of Pier 400.—
Glenn Taylor,
Sourcing Journal,
3 Oct. 2025
Cite this Entry
“Underwater.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/underwater. Accessed 16 Oct. 2025.
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