waterlogged vs boggy

waterlogged and boggy both are adjectives.

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

As adjectives, waterlogged and boggy are synonyms defined as:

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

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