堕落

degenerate; fall; sink; debase; go to the bad; go downhill; sink low; decadent; fallen; degraded; dissolute; debauched; depraved; corrupt; degeneration; depravity; degradation; decadence; vice; turpitude; corruption

罪犯

criminal; offender; culprit; malefactor; villain; thug; perp; crook