55 entries under illegal topic. ×
| illegal(adjective, law, criminal, legal) | |
| unlawful(adjective, law, right, irregular, unwarranted) | |
| illegitimate(adjective, law, irregular, unwarranted, legal) | |
| criminal(adjective, wrong, irregular, unwarranted, legal) | |
| wrong(adjective, dishonest, immoral, legal) | |
| felonious(adjective, irregular, unwarranted, criminal, legal) | |
| unauthorized(adjective, legal, forbidden, undueness) | |
| outlawed(adjective, law, irregular, unwarranted, criminal) | |
| lawless(adjective, law, irregular, unwarranted, criminal) | |
| wrongful(adjective, law, evil, legal) | |
| forbidden(verb, adjective) | |
| improper(adjective, dishonest, legal, illegitimate) | |
| unlicensed(adjective, irregular, unwarranted, criminal, legal) | |
| crooked(adjective, irregular, unwarranted, criminal, legal) | |
| actionable(adjective, illegality) | |
| verboten | |
| bootleg(adjective, legal, forbidden) | |
| taboo | |
| unconstitutional(adjective, undueness) | |
| against the law(expression, adjective, idiom, wrong) |
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| APA | Smart Define. (2015). illicit thesaurus. Retrieved September 22, 2026, from https://smartdefine.org/illicit/thesaurus/synonyms |
| Chicago | Smart Define. 2015. "illicit thesaurus" https://smartdefine.org/illicit/thesaurus/synonyms (accessed September 22, 2026). |
| Harvard | Smart Define 2015, illicit thesaurus, Smart Define, viewed 22 September, 2026, <https://smartdefine.org/illicit/thesaurus/synonyms>. |
| MLA | Smart Define. "illicit thesaurus" 13 April 2015. Web. 22 September 2026. <https://smartdefine.org/illicit/thesaurus/synonyms> |