Underwater Definition

ŭndər-wôtər, -wŏtər
adjective
Being, placed, done, etc. beneath the surface of the water.
Webster's New World
Used or for use under water.
Webster's New World
Below the waterline of a ship.
Webster's New World
Of or having an asset that has a value less than its specified purchase price, as a stock option, or less than an outstanding loan against it, as a property.
Webster's New World
adverb
Beneath the surface of the water.
Webster's New World
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noun

Underlying water or body of water, for example in an aquifer or the deep ocean.

Wiktionary

(fishing) A type of lure which lies beneath the water surface.

Wiktionary
verb

(agriculture, horticulture) To water or irrigate insufficiently.

Wiktionary

Other Word Forms of Underwater

Noun

Singular:
underwater
Plural:
underwaters

Origin of Underwater

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underwater