underwater

adjective

un·​der·​wa·​ter ˌən-dər-ˈwȯ-tər How to pronounce underwater (audio)
-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
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
With the war over, President Harry Truman proclaimed that an underwater area of some 750,000 square miles—about 4.5 Californias—now belonged to America. Jack Truesdale, The Atlantic, 25 Jan. 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, 25 Jan. 2025 Komatsu has been building such underwater dozers for riverbed dredging since the 1970s, but the latest developments incorporate significantly higher levels of autonomy and electrification for safety and environmental reasons (Figure 4). Sabbir Rangwala, Forbes, 24 Jan. 2025 Burchett's statements about underwater alien bases have not been verified. Gordon G. Chang, Newsweek, 24 Jan. 2025 See all Example Sentences for underwater 

Word History

First Known Use

1627, in the meaning defined at sense 1

Time Traveler
The first known use of underwater was in 1627

Dictionary Entries Near underwater

Cite this Entry

“Underwater.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/underwater. Accessed 30 Jan. 2025.

Kids Definition

underwater

adjective
un·​der·​wa·​ter ˈən-dər-ˈwȯt-ər How to pronounce underwater (audio)
-ˈwät-
: lying, growing, worn, performed, or operating below the surface of the water
underwater plants
an underwater cave
underwater
-ˈwȯt-
-ˈwät-
adverb

Legal Definition

underwater

adjective
un·​der·​wa·​ter
1
: owing more on a mortgage loan than the property securing the loan is worth
underwater homeowners
2
: being or relating to a mortgage loan in which more is owed than the property securing the loan is worth
underwater mortgages
underwater properties

More from Merriam-Webster on underwater

Last Updated: - Updated example sentences
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