Definition from Wiktionary, the free dictionary
- (not comparable) beneath the surface of the water, or of or pertaining to the region beneath the water surface
- (nautical) beneath the water line of a vessel
- (figuratively) Under water.
- (finance) having negative equity; owing more on an asset than its market value
- We've been underwater on our mortgage ever since the housing crash.
2013 May 13, Matthew MacCaull as Matt Bronstein, “Underwater”, Bates Motel episode 9, A&E:
- You're underwater. The best thing you can do is just walk away. Let the bank take it back.
beneath the water surface
nautical: beneath the water line
- (beneath the water surface): subaqueous, subaquatic, submarine
- (having negative equity): upside down
underwater (plural underwaters)
- underlying water or body of water, for example in an aquifer or the deep ocean
- (fishing) A type of lure which lies beneath the water surface.
1923, Sheridan R. Jones, Bait Casting: The Short Rod and How to Use It, page 57:
- Practically all wobbling underwaters will take fish aplenty in the hands of a man who really knows how to put them through their stints.