- Definitions|1
- Thesaurus|155
- Abbreviations|0
| illegal sales(noun, expression, run, underground, subway) | |
| illegitimate business(noun, expression, run, underground, subway) | |
| illicit business(noun, expression, run, underground, subway) | |
| indictable(illegal, illicit, unsanctioned, unapproved) | |
| opprobrious | |
| pitch-black | |
| pitch-dark | |
| shady dealings(noun, expression, run, underground, subway) | |
| sinister | |
| smuggle | |
| smutty | |
| snake in | |
| sold illicitly | |
| underground market(noun, expression, run, underground, subway) | |
| underworld market(noun, expression, run, underground, subway) |
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| APA | Smart Define. (2015). black-market thesaurus. Retrieved September 30, 2026, from https://smartdefine.org/black-market/thesaurus/synonyms |
| Chicago | Smart Define. 2015. "black-market thesaurus" https://smartdefine.org/black-market/thesaurus/synonyms (accessed September 30, 2026). |
| Harvard | Smart Define 2015, black-market thesaurus, Smart Define, viewed 30 September, 2026, <https://smartdefine.org/black-market/thesaurus/synonyms>. |
| MLA | Smart Define. "black-market thesaurus" 13 April 2015. Web. 30 September 2026. <https://smartdefine.org/black-market/thesaurus/synonyms> |