- Definitions|2
- Thesaurus|360
- Abbreviations|0
96 entries under noun topic. ×
| abyss(activity, element, torment, misery) | |
| Hell(place, ruin, difficulty, heaven) | |
| inferno(ruin, misery, punishment, grave) | |
| Hades(ruin, misery, punishment, agony) | |
| mob(activity, informal, element, netherworld) | |
| gangland(adjective, activity, element, criminal) | |
| syndicate(activity, element, netherworld, gangland) | |
| netherworld(punishment, hell, perdition, purgatory) | |
| Mafia(activity, element, gang, netherworld) | |
| crime(swindle, con, scam, concerned with organized crime) | |
| infernal region(expression, idiom) | |
| organized crime(activity, element, netherworld, gangland) | |
| perdition(misery, punishment, grave, agony) | |
| Hel | |
| Scheol | |
| criminals(activity, element) | |
| nether world(expression, idiom, misery, punishment) | |
| purgatory(ruin, misery, punishment, grave) | |
| racket(activity, element, swindle, con) | |
| Pandemonium(misery, grave, nightmare, hell) |
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| APA | Smart Define. (2015). underworld thesaurus. Retrieved September 26, 2026, from https://smartdefine.org/underworld/thesaurus/synonyms |
| Chicago | Smart Define. 2015. "underworld thesaurus" https://smartdefine.org/underworld/thesaurus/synonyms (accessed September 26, 2026). |
| Harvard | Smart Define 2015, underworld thesaurus, Smart Define, viewed 26 September, 2026, <https://smartdefine.org/underworld/thesaurus/synonyms>. |
| MLA | Smart Define. "underworld thesaurus" 10 April 2015. Web. 26 September 2026. <https://smartdefine.org/underworld/thesaurus/synonyms> |