scummy vs dirty

scummy and dirty both are adjectives.

Word	Noun	Adjective	Verb	Adverb
scummy	No	Yes	No	No
dirty	No	Yes	Yes	No

scummy (adjective)	dirty (adjective)
of the most contemptible kind	soiled or likely to soil with dirt or grime
covered with scum	(of behavior or especially language) characterized by obscenity or indecency
	spreading pollution or contamination; especially radioactive contamination
	unethical or dishonest
	expressing or revealing hostility or dislike
	obtained illegally or by improper means
	(of a manuscript) defaced with changes
	(of color) discolored by impurities; not bright and clear
	vile; despicable
	contaminated with infecting organisms
	unpleasantly stormy
	violating accepted standards or rules

scummy (verb)	dirty (verb)
	make soiled, filthy, or dirty