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Added 9 October 2026

underwater

/ʌndə(ɹ)ˈwɔːtə/ adjective

In Latin: summersus Wiktionary

adjective Definition from Wiktionary (CC BY-SA). Pronunciation from Wiktionary, via Kaikki.org. More about underwater at Wordnik → Where our words come from →

Beneath the surface of the water; of or pertaining to the region beneath the water surface.
Watch out for underwater obstacles.
Beneath the water line of a vessel.
When the ship was brought into dry dock, it was found that she had underwater damage.
In difficulty, especially financially.

adverb

So as to go beneath the surface of the water.
Can you swim underwater?

noun

Underlying water or body of water, for example in an aquifer or the deep ocean.
A type of lure which lies beneath the water surface.

verb

To water or irrigate insufficiently.
Care must be taken not to underwater houseplants in the summer.

Origin

From under (preposition) + water.

From Wiktionary, via Kaikki.org (CC BY-SA)

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