squalid vs seamy

squalid and seamy both are adjectives.

Word	Noun	Adjective	Verb	Adverb
squalid	No	Yes	No	No
seamy	No	Yes	No	No

As adjectives, squalid and seamy are synonyms defined as:

Other synonyms of squalid include seedy, sleazy, sordid.

squalid (adjective)	seamy (adjective)
foul and run-down and repulsive	morally degraded
morally degraded	showing a seam