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Definitions

underwater

[uhn-der-waw-ter, -wot-er] / ˈʌn dərˈwɔ tər, -ˈwɒt ər /
ADJECTIVE
under the water's surface
Synonyms


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.

About 71% of his delivery routes, he said, are financially underwater.

From The Wall Street Journal • May 11, 2026

In January 2022, the underwater volcano Hunga Tonga-Hunga Ha'apai in the South Pacific produced one of the most powerful eruptions in modern history.

From Science Daily • May 10, 2026

Sewage and agricultural pollution in rivers is having an "alarming" knock-on impact on marine life in underwater forests along the British coastline, according to new research.

From BBC • May 2, 2026

Still, the instant discount is something of a black eye, since it means investors who lined up to buy the fund at launch are already underwater.

From Barron's • May 1, 2026

Our robot marched through the underwater town until she came to a building that had once been a grocery store.

From "The Wild Robot Protects" by Peter Brown