Same word as verminous:

begrimed, black, blackened, cruddy, crummy, disheveled, fecal, feculent, foul, grimy, gross, grubby, grungy, impure, loathsome, miry, mucky, muddy, nasty, obscene, offensive, putrid, repulsive, revolting, scummy, sleazy, slimy, slipshod, sloppy, slovenly, smoky, soiled, soily, sooty, squalid, unclean, uncleanly, unkempt, unwashed, verminous, vile, yecchy