Synonyms for Den of iniquity:

• n.

  •brothel (noun)
  • red-light district,
  • house of assignation,
  • call house,
  • bagnio,
  • massage parlor,
  • cathouse,
  • call houses,
  • bawdy house,
  • house with red doors,
  • bordellos,
  • bagnios,
  • house of ill repute,
  • whorehouse,
  • bordello.
  •house of prostitution (noun)
  • brothel.
  •whorehouse (noun)
  • house of prostitution,
  • house of ill fame.