14 entries under expression topic. ×
| off limits(adjective, idiom, offensive, illegal) | |
| not allowed(idiom, offensive, illegal, permitted) | |
| out of bounds(adjective, idiom, adverb, offensive) | |
| beyond the pale(idiom, offensive, restricted, permitted) | |
| not permitted(idiom, prohibition) | |
| ruled out(offensive, permitted, unthinkable, unmentionable) | |
| against the law(adjective, idiom) | |
| contrary to reason | |
| is prohibited | |
| not in it | |
| under the ban | |
| frowned on(offensive, permitted, unthinkable, unmentionable) | |
| illicit intercourse | |
| illicit pleasure |
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| APA | Smart Define. (2015). prohibited thesaurus. Retrieved September 20, 2026, from https://smartdefine.org/prohibited/thesaurus/synonyms |
| Chicago | Smart Define. 2015. "prohibited thesaurus" https://smartdefine.org/prohibited/thesaurus/synonyms (accessed September 20, 2026). |
| Harvard | Smart Define 2015, prohibited thesaurus, Smart Define, viewed 20 September, 2026, <https://smartdefine.org/prohibited/thesaurus/synonyms>. |
| MLA | Smart Define. "prohibited thesaurus" 10 April 2015. Web. 20 September 2026. <https://smartdefine.org/prohibited/thesaurus/synonyms> |