9 entries under prohibition topic. ×

17
illegal(adjective, adverb, offensive, permitted, illegitimate)
7
contraband(adjective, irregular, unwarranted, criminal, illegal)
5
unauthorized
3
impermissible
3
unlicensed
3
unthinkable(offensive, permitted, unmentionable)
2
beyond the pale(expression, idiom, offensive, restricted, permitted)
2
not permitted(expression, idiom)
0
uncountenanced
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APASmart Define. (2015). prohibited thesaurus. Retrieved September 27, 2026, from https://smartdefine.org/prohibited/thesaurus/synonyms
ChicagoSmart Define. 2015. "prohibited thesaurus" https://smartdefine.org/prohibited/thesaurus/synonyms (accessed September 27, 2026).
HarvardSmart Define 2015, prohibited thesaurus, Smart Define, viewed 27 September, 2026, <https://smartdefine.org/prohibited/thesaurus/synonyms>.
MLASmart Define. "prohibited thesaurus" 10 April 2015. Web. 27 September 2026. <https://smartdefine.org/prohibited/thesaurus/synonyms>