Das Gegenteil zu Muhhsin.   

Qur'aan :  Suurah  al Qasaas, Ayah 4 : "Verily, Fir'aun (Pharaoh) exalted himself in the land and made its people sects, weakening (oppressing) a group (i.e. Children of Israel) among them, killing their sons, and letting their females live. Verily, he was of the Mufsidûn (i.e. those who commit great sins and crimes, oppressors, tyrants, etc.).