submerged vs subaquatic

submerged and subaquatic both are adjectives.

Word	Noun	Adjective	Verb	Adverb
submerged	No	Yes	No	No
subaquatic	No	Yes	No	No

As adjectives, submerged and subaquatic are synonyms defined as:

Other synonyms of submerged include subaqueous, submersed, underwater.

submerged (adjective)	subaquatic (adjective)
beneath the surface of the water	partially aquatic; living or growing partly on land and partly in water
growing or remaining under water	growing or remaining under water