underwater

[uhn-der-waw-ter, -wot-er] / ˈʌn dərˈwɔ tər, -ˈwɒt ər /

ADJECTIVE

under the water's surface

Synonyms

STRONGEST

submerged undersea

WEAK

immersed subaquatic subaqueous submarine sunken

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

As plants break down underwater, they form methane, which then bubbles to the surface.

From Los Angeles Times • Apr. 15, 2026

Cuba’s underwater bus turns into a lifeline amid fuel crisis.

From MarketWatch • Apr. 14, 2026

In another close encounter, while filming underwater a hungry walrus mistook him for a seal and took hold of his legs.

From BBC • Apr. 8, 2026

They suggest that while an underwater landslide did occur, it did not directly create the wrinkles.

From Science Daily • Apr. 3, 2026

The river is flooding and half the island is underwater.

From "Earthquake Terror" by Peg Kehret