underwater
adjective
un·der·wa·ter
ˌən-dər-ˈwȯ-tər 
-ˈwä-
1
: lying, growing, worn, performed, or operating below the surface of the water
underwater plants
2
: being below the waterline of a ship
3
a
: having, relating to, or being a mortgage loan for which more is owed than the property securing the loan is worth
b
: having, relating to, or being a stock option for which the price of the option is higher than the current market value of the stock
underwater
adverb
Examples of underwater in a Sentence
underwater plants don't require as much light to grow as surface plants
a vessel designed for underwater exploration
Recent Examples on the Web
Fossils in the park can showcase Paleozoic marine life from a period when the entire area was underwater.
—
Ruby Grisin, The Courier-Journal, 24 July 2025
Kate Winslet broke Tom Cruise's underwater filming record from Mission: Impossible - Rogue Nation (2015) of six minutes with a record of seven minutes and 14 seconds.
—Rebecca Alter, Vulture, 22 July 2025
Five divers compete to put together an amazing underwater routine with their toothy partners — from hammerheads to tigers and nurse sharks.
—Stephen Schaefer, Boston Herald, 20 July 2025
No hunting benefit, no health perk, just a splash of underwater drama.
—Pranjal Malewar, New Atlas, 19 July 2025
See All Example Sentences for underwater
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Ruby Grisin, The Courier-Journal, 24 July 2025
Kate Winslet broke Tom Cruise's underwater filming record from Mission: Impossible - Rogue Nation (2015) of six minutes with a record of seven minutes and 14 seconds.
—Rebecca Alter, Vulture, 22 July 2025
Five divers compete to put together an amazing underwater routine with their toothy partners — from hammerheads to tigers and nurse sharks.
—Stephen Schaefer, Boston Herald, 20 July 2025
No hunting benefit, no health perk, just a splash of underwater drama.
—Pranjal Malewar, New Atlas, 19 July 2025
See All Example Sentences for underwater
Cite this Entry
“Underwater.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/underwater. Accessed 29 Jul. 2025.
Copy CitationKids Definition
underwater
adjective
un·der·wa·ter
ˈən-dər-ˈwȯt-ər
-ˈwät-
: lying, growing, worn, performed, or operating below the surface of the water
underwater plants
an underwater cave
underwater
adverb
-ˈwȯt-
-ˈwät-
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