27 entries under forbidden topic. ×
| illegal(adjective, law, criminal, legal, illegal) | |
| unlawful(adjective, law, right, irregular, unwarranted) | |
| illegitimate(adjective, law, irregular, unwarranted, legal) | |
| criminal(adjective, wrong, irregular, unwarranted, legal) | |
| wrong(adjective, dishonest, immoral, legal, illegal) | |
| felonious(adjective, irregular, unwarranted, criminal, legal) | |
| prohibited(adjective, legal, illegality) | |
| unauthorized(adjective, legal, illegal, undueness) | |
| lawless(adjective, law, irregular, unwarranted, criminal) | |
| wrongful(adjective, law, evil, legal, illegal) | |
| improper(adjective, dishonest, legal, illegal, illegitimate) | |
| unlicensed(adjective, irregular, unwarranted, criminal, legal) | |
| crooked(adjective, irregular, unwarranted, criminal, legal) | |
| adulterous(adjective, legal, unfaithful) | |
| bootleg(adjective, legal, illegal) | |
| clandestine(adjective, secret, sly, legal) | |
| contraband(adjective, legal, unlawful, illegality) | |
| furtive(adjective, hidden, legal, fraudulent) | |
| immoral(adjective, wrong, wicked, legal, unfaithful) | |
| black-market(adjective, irregular, unwarranted, criminal, legal) |
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| APA | Smart Define. (2015). illicit thesaurus. Retrieved September 24, 2026, from https://smartdefine.org/illicit/thesaurus/synonyms |
| Chicago | Smart Define. 2015. "illicit thesaurus" https://smartdefine.org/illicit/thesaurus/synonyms (accessed September 24, 2026). |
| Harvard | Smart Define 2015, illicit thesaurus, Smart Define, viewed 24 September, 2026, <https://smartdefine.org/illicit/thesaurus/synonyms>. |
| MLA | Smart Define. "illicit thesaurus" 13 April 2015. Web. 24 September 2026. <https://smartdefine.org/illicit/thesaurus/synonyms> |