un·der·sea
ˌən-dər-ˈsē 
1
: being or carried on under the sea or under the surface of the sea
undersea oil deposits
undersea fighting
2
: designed for use under the surface of the sea
an undersea fleet
Examples of undersea in a Sentence
Adjective
They are conducting undersea research.
Recent Examples on the Web
Kameryn Griesser, CNN Money, 8 May 2025
Hybrid warfare refers to a range of activities stopping short of open fighting, like cyberattacks, information campaigns or the targeting of vulnerable infrastructure, such as undersea cables.
—Ellie Cook, MSNBC Newsweek, 6 May 2025
Researchers have long warned that a stretch of coast in Oregon and Washington state is capable of producing an incredibly powerful earthquake that could kill thousands, shattering critical bridges, destroying undersea communication cables and producing a tsunami.
—Joel Shannon, USA Today, 2 May 2025
Russia and China have denied intentionally damaging any undersea infrastructure.
—Will McCurdy, PC Magazine, 12 Apr. 2025
See All Example Sentences for undersea
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Adjective
Observing an undersea volcanic eruption is no easy task.
—Kameryn Griesser, CNN Money, 8 May 2025
Hybrid warfare refers to a range of activities stopping short of open fighting, like cyberattacks, information campaigns or the targeting of vulnerable infrastructure, such as undersea cables.
—Ellie Cook, MSNBC Newsweek, 6 May 2025
Researchers have long warned that a stretch of coast in Oregon and Washington state is capable of producing an incredibly powerful earthquake that could kill thousands, shattering critical bridges, destroying undersea communication cables and producing a tsunami.
—Joel Shannon, USA Today, 2 May 2025
Russia and China have denied intentionally damaging any undersea infrastructure.
—Will McCurdy, PC Magazine, 12 Apr. 2025
See All Example Sentences for undersea
Cite this Entry
“Undersea.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/undersea. Accessed 25 May. 2025.
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