dirty
Obtained illegally or by improper means.
“dirty money”
(of color) discolored by impurities; not bright and clear.
“a dirty (or dingy) white”
“dirty-green walls”
Expressing or revealing hostility or dislike.
“dirty looks”
(of behavior or especially language) characterized by obscenity or indecency.
“dirty words”
“a dirty old man”
Unpleasantly stormy.
“there's dirty weather in the offing”
(of a manuscript) defaced with changes.
“foul (or dirty) copy”
Violating accepted standards or rules.
“a dirty fighter”
Unethical or dishonest.
“dirty police officers”
Spreading pollution or contamination; especially radioactive contamination.
“the air near the foundry was always dirty”
“a dirty bomb releases enormous amounts of long-lived radioactive fallout”
Vile; despicable.
“a dirty (or lousy) trick”
Contaminated with infecting organisms.
“dirty wounds”
Soiled or likely to soil with dirt or grime.
“dirty unswept sidewalks”
“a child in dirty overalls”
Make soiled, filthy, or dirty.