Synonyms for Submerged:

adj.

all (adjective)
submersed, underwater.
deep (adjective)
subaqueous.
underwater (adjective)
underwater, subaquatic.

n.

concerned, be harnessed to, complicit, serious, in the process of doing something, engaged, active, actively, involved. dunk, submerge, splash, sink, swim, go down, carry, duck, go under. submerged (noun)
subaquatic, swamped, sunken, subsurface, underwater, subaqueous, aquatic, drowned, submersed.

v.

flooded (verb)
saturated, Rinsed, imbued, Sluiced, soaked, sloshed, Deluged, drenched, swamped, Showered.
immersed (verb)
dunked, dipped, drowned, flooded, inundated, Wallowed, Immersed, Doused, Plunged, Sank, Bathed, engulfed, sunk.
lowered (verb)
deepened, lowered, depressed, dropped, shortened.

Other synonyms:

engaged, involved, actively, complicit. concerned, serious. active. Other relevant words:
go under, aquatic, submerge, submersed, subaquatic, engaged, actively, underwater, sunken, subsurface, subaqueous, sink, serious, complicit.

Usage examples for submerged

  1. " I think I see," said Lennard, " that's why you've half submerged her." – The World Peril of 1910 by George Griffith
  2. A foot would be sufficient to have submerged the sailor: since he could not swim. – The Boy Slaves by Mayne Reid
  3. It was advancing rapidly also at his rear; soon the stretch of shore, half sand, half mud, on which he stood, would be entirely submerged – North, South and Over the Sea by M.E. Francis (Mrs. Francis Blundell)