Answer:

immersed

Answer	Crossword Clue
IMMERSED	Completely covered, as by water
IMMERSED	Put under
IMMERSED	Like someone who's gone off the deep end

IMMERSED	Absorbed in
IMMERSED	Deeply absorbed
IMMERSED	Engrossed
IMMERSED	Doused
IMMERSED	Ducked at the shore
IMMERSED	Steeped
IMMERSED	Underwater
IMMERSED	Heavily engaged (in)