dirty vs scummy

dirty and scummy both are adjectives.

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

dirty (adjective)	scummy (adjective)
soiled or likely to soil with dirt or grime	of the most contemptible kind
(of behavior or especially language) characterized by obscenity or indecency	covered with scum
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

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