THESAURUS
putrefy
break down, break up, canker, corrupt, crumble, crumble into dust, decay, decompose, deteriorate, disintegrate, fall into decay, fall to pieces, fester, gangrene, go bad, go off, go to pieces, mildew, mold, molder, mortify, moulder, necrose, putresce, rankle, rot, sphacelate, spoil, suppurate, taint, turn
ROGET THESAURUS
putrefy
Uncleanness
VB
be unclean, become unclean, rot,
putrefy, ferment, fester, rankle, reek, stink, mold, molder, go bad, render unclean, dirt, dirty, daub, blot, blur, smudge, smutch, soil, smoke, tarnish, slaver, spot, smear, smirch, begrease, dabble, drabble, draggle, daggle, spatter, slubber, besmear, bemire, beslime, begrime, befoul, splash, stain, distain, maculate, sully, pollute, defile, debase, contaminate, taint, leaven, corrupt, cover with dust, drabble in the mud, roil, wallow in the mire, slobber, slabber.