- Definitions|2
- Thesaurus|237
- Abbreviations|0
| illicit(adjective, illegal, undueness) | |
| unlawful(adjective, illegal, undueness) | |
| criminal(adjective, illegal) | |
| unauthorized(adjective, illegal, permitted, sanctioned, undueness) | |
| illegal(adjective, illegal, undueness) | |
| illegitimate(adjective, legal, illegal) | |
| felonious(adjective, illegal) | |
| forbidden(adjective, illegal) | |
| lawless(adjective, illegal) | |
| wrongful(adjective, illegal) | |
| bootleg(adjective, illegal) | |
| punishable(adjective, illegal) | |
| unjust(adjective, illegal) | |
| actionable(adjective, illegal) | |
| flawed | |
| disallowed | |
| disentitled | |
| disqualified | |
| expired | |
| hot |
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| APA | Smart Define. (2015). unconstitutional thesaurus. Retrieved September 21, 2026, from https://smartdefine.org/unconstitutional/thesaurus/synonyms |
| Chicago | Smart Define. 2015. "unconstitutional thesaurus" https://smartdefine.org/unconstitutional/thesaurus/synonyms (accessed September 21, 2026). |
| Harvard | Smart Define 2015, unconstitutional thesaurus, Smart Define, viewed 21 September, 2026, <https://smartdefine.org/unconstitutional/thesaurus/synonyms>. |
| MLA | Smart Define. "unconstitutional thesaurus" 13 April 2015. Web. 21 September 2026. <https://smartdefine.org/unconstitutional/thesaurus/synonyms> |