Synonyms of underwater

underwater

adjective

ˌən-dər-ˈwȯ-tər 

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

Synonyms & Similar Words

• aquatic
• submarine
• submerged
• sunken
• oceanic
• undersea
• deep
• deepwater
• deep-sea
• abyssal
• abysmal

Example Sentences

Recent Examples of underwater

For that reason, the species is a favorite among underwater photographers. —Carlyn Kranking, Smithsonian Magazine, 25 Mar. 2025

The underwater scenes offer a vibrant, vivid beauty, but the film's best asset is the chemistry between Bailey and Jonah Hauer-King as Prince Eric. —Staff Author, EW.com, 22 Mar. 2025

The pillars of the massive pier have formed artificial vertical reefs underwater, and diving here almost feels like entering a science fiction world, with alien-like tree formations and coral growths blossoming out from the supports. —Erik Trinidad, Travel + Leisure, 17 Mar. 2025

Since Kyiv's attacks on the bridge, Moscow has tried to implement repairs, fortifying it with underwater barriers and reportedly redeploying air defense systems, including the Pantsir-S1 air defense system, to shield it. —William Lambers, Newsweek, 9 Mar. 2025