The 'one who does not find anything terrible'. Shivite order descended from the 'Kapalika' (skull bearers) and 'Kalamukha' (black faced) sects. They are known for their penance of inhabiting graveyards/cemeteries and places of death, eating from bowls made of human skulls.

Also see 'Bhairav', 'Mahakal', 'Kalamukha', 'Kapalika', 'Pashupati', 'Rudra', 'Shiva'.