cruddy vs filthy

cruddy and filthy both are adjectives.

Word	Noun	Adjective	Verb	Adverb
cruddy	No	Yes	No	No
filthy	No	Yes	No	No

As adjectives, cruddy and filthy are synonyms defined as:

Other synonyms of cruddy include foul, nasty, smutty.

cruddy (adjective)	filthy (adjective)
characterized by obscenity	disgustingly dirty; filled or smeared with offensive matter
	characterized by obscenity
	vile; despicable