waterlogged vs marshy

waterlogged and marshy both are adjectives.

Word	Noun	Adjective	Verb	Adverb
waterlogged	No	Yes	No	No
marshy	No	Yes	No	No

As adjectives, waterlogged and marshy are synonyms defined as:

Other synonyms of waterlogged include boggy, miry, mucky, muddy, quaggy, sloppy, sloughy, soggy, squashy, swampy.

waterlogged (adjective)	marshy (adjective)
(of soil) soft and watery	(of soil) soft and watery