Adjective underwater has 2 senses
- submerged, submersed, underwater - beneath the surface of the water; "submerged rocks"
Antonym: overhead (indirect, via surface, subsurface)
Antonym: surface (indirect, via subsurface, overhead)
- subaqueous, subaquatic, submerged, submersed, underwater - growing or remaining under water; "viewing subaqueous fauna from a glass-bottomed boat"; "submerged leaves"
Antonyms: terrestrial, land (indirect, via amphibious, aquatic)
Antonym: amphibious (indirect, via aquatic, terrestrial)
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