WordNet sense 1 (ritually unclean or impure):

impure

WordNet sense 2 (dirty and messy; covered with mud or muck):

muddy

WordNet sense 3 (infested with lice):

lousy

WordNet sense 4 (foul and run-down and repulsive):

sordid, squalid

WordNet sense 5 (disgustingly dirty; filled or smeared with offensive matter):

filthy, foul, nasty

WordNet sense 6 (soiled with dirt or soot):

black

WordNet sense 7 (thickly covered with ingrained dirt or soot):

dingy, dingy

WordNet sense 8 (soiled or likely to soil with dirt or grime):

dirty, soiled