inundate vs submerge

inundate and submerge both are verbs.

Word	Noun	Adjective	Verb	Adverb
inundate	No	No	Yes	No
submerge	No	No	Yes	No

As verbs, inundate and submerge are synonyms defined as:

Other synonyms of inundate include deluge.

inundate (verb)	submerge (verb)
fill or cover completely, usually with water	fill or cover completely, usually with water
fill quickly beyond capacity; as with a liquid	cover completely or make imperceptible
	put under water
	sink below the surface; go under or as if under water