subaqueous

• POS: Adjective
• HYPHEN: sub=a=que=ous

CIDE DICTIONARY

subaqueous, a. 

•  Being under water, or beneath the surface of water; adapted for use under water; submarine; as, a subaqueous helmet.  [1913 Webster]
•  Formed in or under water; as, subaqueous deposits.  [1913 Webster]

OXFORD DICTIONARY

subaqueous, adj.
1 existing, formed, or taking place under water.
2 lacking in substance or strength; wishy-washy.

ROGET THESAURUS

subaqueous

Depth

N depth, deepness, profundity, depression, hollow, pit, shaft, well, crater, gulf, bowels of the earth, botttomless pit, hell, soundings, depth of water, water, draught, submersion, plummet, sound, probe, sounding rod, sounding line, lead, bathymetry, sonar, side-looking sonar, bathometer, deep, deep seated, profound, sunk, buried, submerged, subaqueous, submarine, subterranean, subterraneous, subterrene, underground, bottomless, soundless, fathomless, unfathomed, unfathomable, abysmal, deep as a well, bathycolpian, benthal, benthopelagic, downreaching, yawning, knee deep, ankle deep, beyond one's depth, out of one's depth, over head and ears, mark twine, mark twain.