Related Clues:

• Prefix with "appear" or "approve"
• Prefix denoting the opposite of the base word
• Conks out having expended energy in soul venue
• Cousin of "un"
• Underworld roamed by the souls of the dead in Greek mythology
• The abode of headless ghosts?
• Headless ghosts in the underworld
• In Greek mythology, the underworld abode of the souls of the dead
• Pluto
• Vergil's art first grasped the meaning of the underworld
• The god Pluto
• Sunglasses but no sun initially? Hell!
• Where late arrivals get the warmest of receptions?
• Origins of Hell and damnation eternal, say
• Underground world he's hanging around these days