Crossword clues for the word: UNDERWORLD The word UNDERWORLD has appeared as an answer to at least 9 crossword clues on different crossword puzzles. Crossword clues for UNDERWORLD Showing 1 to 9 of 9 results Clue(s) "Abode of the dead, ruled by Hades" 1997 novel by Don DeLillo City problem. Domain of Cerebus Domain of Hades Pit foreign articles against vast number Realm of hoods Thieves' milieu What the River Styx forms the boundary of