82 entries under adjective topic. ×
| wildcat(permitted, sanctioned) | |
| actionable | |
| lawless | |
| outlawed | |
| punishable | |
| taboo | |
| banned | |
| crooked(informal, permitted, sanctioned) | |
| unaccredited | |
| unwarrantable | |
| against the law(expression, idiom) | |
| dirty(informal, permitted, sanctioned) | |
| offensive | |
| out of bounds(expression, idiom, permitted, sanctioned) | |
| private(secret, hidden, sneaky, covert) | |
| proscribed | |
| shady(informal, permitted, sanctioned) | |
| unjust | |
| unjustified(permitted, sanctioned, undueness) | |
| abnormal |
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| APA | Smart Define. (2015). unauthorized thesaurus. Retrieved September 23, 2026, from https://smartdefine.org/unauthorized/thesaurus/synonyms |
| Chicago | Smart Define. 2015. "unauthorized thesaurus" https://smartdefine.org/unauthorized/thesaurus/synonyms (accessed September 23, 2026). |
| Harvard | Smart Define 2015, unauthorized thesaurus, Smart Define, viewed 23 September, 2026, <https://smartdefine.org/unauthorized/thesaurus/synonyms>. |
| MLA | Smart Define. "unauthorized thesaurus" 13 April 2015. Web. 23 September 2026. <https://smartdefine.org/unauthorized/thesaurus/synonyms> |