9 entries under prohibition topic. ×
| illegal(adjective, illegal, permitted, sanctioned) | |
| prohibited(adjective, unapproved) | |
| unlicensed(adjective, illegal) | |
| contraband(adjective, unlawful) | |
| impermissible | |
| not permitted(expression, idiom) | |
| beyond the pale(expression, idiom) | |
| uncountenanced | |
| unthinkable |
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| APA | Smart Define. (2015). unauthorized thesaurus. Retrieved September 25, 2026, from https://smartdefine.org/unauthorized/thesaurus/synonyms |
| Chicago | Smart Define. 2015. "unauthorized thesaurus" https://smartdefine.org/unauthorized/thesaurus/synonyms (accessed September 25, 2026). |
| Harvard | Smart Define 2015, unauthorized thesaurus, Smart Define, viewed 25 September, 2026, <https://smartdefine.org/unauthorized/thesaurus/synonyms>. |
| MLA | Smart Define. "unauthorized thesaurus" 13 April 2015. Web. 25 September 2026. <https://smartdefine.org/unauthorized/thesaurus/synonyms> |