deprave

debase, vitiate, deprave, corrupt, debauch, pervert mean to cause deterioration or lowering in quality or character. debase implies a loss of position, worth, value, or dignity <commercialism has debased the holiday>. vitiate implies a destruction of purity, validity, or effectiveness by allowing entrance of a fault or defect <a foreign policy vitiated by partisanship>. deprave implies moral deterioration by evil thoughts or influences <the claim that society is depraved by pornography>. corrupt implies loss of soundness, purity, or integrity <the belief that bureaucratese corrupts the language>. debauch implies a debasing through sensual indulgence <the long stay on a tropical isle had debauched the ship's crew>. pervert implies a twisting or distorting from what is natural or normal <perverted the original goals of the institute>.