Part of speech:
Hidden or undisclosed.
Below the level of the surrounding or adjoining area
Marine is defined as something related to water or the sea.
Being lower; being beneath something.
Adapted for underwater use or existence; underwater
Growing or remaining under water:
Find another word for underwater. In this page you can discover 9 synonyms, antonyms, idiomatic expressions, and related words for underwater, like: submarine, sunken, marine, under, undersea, subaqueous, subaquatic, submerged and submersed.