cruddy vs nasty

cruddy and nasty both are adjectives.

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

As adjectives, cruddy and nasty are synonyms defined as:

Other synonyms of cruddy include filthy, foul, smutty.

cruddy (adjective)	nasty (adjective)
characterized by obscenity	offensive or even (of persons) malicious
	exasperatingly difficult to handle or circumvent
	disgustingly dirty; filled or smeared with offensive matter
	characterized by obscenity