- Definitions|2
- Thesaurus|237
- Abbreviations|0
25 entries under illegal topic. ×
| illicit(adjective, undueness) | |
| unlawful(adjective, undueness) | |
| criminal | |
| unauthorized(adjective, permitted, sanctioned, undueness) | |
| illegal(adjective, undueness) | |
| illegitimate(adjective, legal) | |
| felonious | |
| forbidden | |
| lawless | |
| wrongful | |
| bootleg | |
| punishable | |
| unjust | |
| actionable | |
| against the law(expression, adjective, idiom) | |
| outlawed | |
| banned | |
| prohibited | |
| offensive | |
| taboo |
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| APA | Smart Define. (2015). unconstitutional thesaurus. Retrieved September 26, 2026, from https://smartdefine.org/unconstitutional/thesaurus/synonyms |
| Chicago | Smart Define. 2015. "unconstitutional thesaurus" https://smartdefine.org/unconstitutional/thesaurus/synonyms (accessed September 26, 2026). |
| Harvard | Smart Define 2015, unconstitutional thesaurus, Smart Define, viewed 26 September, 2026, <https://smartdefine.org/unconstitutional/thesaurus/synonyms>. |
| MLA | Smart Define. "unconstitutional thesaurus" 13 April 2015. Web. 26 September 2026. <https://smartdefine.org/unconstitutional/thesaurus/synonyms> |