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 ill fame.

• Other synonyms:

  •Other relevant words:
  • house of prostitution,
  • stews,
  • Sink-hole,
  • Hell,
  • hellhole,
  • crib,
  • fleshpots,
  • bawdyhouse,
  • hole,
  • sporting house,
  • joint,
  • stew,
  • cesspit,
  • cesspool,
  • den,
  • disorderly house,
  • pit,
  • tenderloin.