23 entries under permitted topic. ×
| forbidden(adjective, offensive, restricted, illegal) | |
| taboo(adjective, bar, offensive, ban, refusal) | |
| banned(adjective, offensive, restricted, prohibited) | |
| illegal(adjective, offensive, unjustified, prohibited) | |
| outlawed(adjective, offensive, prohibited, unthinkable) | |
| prohibited(adjective, offensive, restricted, unthinkable) | |
| restricted(adjective, offensive, prohibited, unthinkable) | |
| ruled out(expression, offensive, prohibited, unthinkable) | |
| unauthorized(adjective, sanctioned) | |
| unmentionable(adjective, offensive, prohibited, unspeakable) | |
| unwarranted(extreme, improper, senseless, excessive, immoderate) | |
| anathema(adjective, offensive, prohibited, unthinkable) | |
| beyond the pale(expression, adjective, idiom, offensive, restricted) | |
| illegitimate(adjective, unreasonable, extreme, improper, stiff) | |
| no-no(noun, bar, refusal, forbidding) | |
| not allowed(expression, adverb, offensive, prohibited) | |
| proscribed(adjective, offensive, prohibited, unthinkable) | |
| unacceptable(adjective, offensive, prohibited, unthinkable) | |
| wrongful(adjective, unreasonable, extreme, improper, stiff) | |
| disapproved(offensive, prohibited, unthinkable, unmentionable) |
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| APA | Smart Define. (2015). out of bounds thesaurus. Retrieved September 27, 2026, from https://smartdefine.org/out_of_bounds/thesaurus/synonyms |
| Chicago | Smart Define. 2015. "out of bounds thesaurus" https://smartdefine.org/out_of_bounds/thesaurus/synonyms (accessed September 27, 2026). |
| Harvard | Smart Define 2015, out of bounds thesaurus, Smart Define, viewed 27 September, 2026, <https://smartdefine.org/out_of_bounds/thesaurus/synonyms>. |
| MLA | Smart Define. "out of bounds thesaurus" 10 April 2015. Web. 27 September 2026. <https://smartdefine.org/out_of_bounds/thesaurus/synonyms> |