THESAURUS
befoul
abuse, afflict, aggrieve, benasty, bespatter, bewitch, blacken, blight, condemn, contaminate, convert, corrupt, crucify, curse, damage, debase, defalcate, defame, defile, denigrate, deprave, desecrate, despoil, destroy, disadvantage, disserve, distress, divert, do a mischief, do evil, do ill, do wrong, do wrong by, doom, embezzle, envenom, foul, get into trouble, harass, harm, hex, hurt, impair, infect, injure, jinx, maladminister, maltreat, menace, mess, mess up, misapply, misappropriate, misemploy, mishandle, mismanage, mistreat, misuse, molest, nasty, outrage, peculate, persecute, pervert, pilfer, play havoc with, play hob with, poison, pollute, prejudice, profane, prostitute, savage, scathe, slander, slur, smear, spatter, sully, taint, tarnish, threaten, torment, torture, traduce, violate, wound, wreak havoc on, wrong
ROGET THESAURUS
befoul
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.