- A real den of iniquity it's divided up into several little catacombs.
- Cranston loved this place, a veritable den of iniquity but one which sold good ales, fine wine and delicious food.
- Well we've got them here now and they're after building a den of iniquity on top of your Imperial Roman artefacts.
iniquityin‧iq‧ui‧ty /ɪˈnɪkwəti/ noun (plural iniquities) [countable, uncountable] formal 
the quality of being very unfair or evil, or something that is very unfairiniquity of
He went on and on about the iniquities of bourgeois oppression. They were trying to protect their son from iniquity. → den of iniquity at den(6)
the quality of being very unfair or evil, or something that is very unfairiniquity of He went on and on about the iniquities of bourgeois oppression. They were trying to protect their son from iniquity. → den of iniquity at den(6)