48 entries under prohibited topic. ×

27
prohibited(verb, adjective, adverb, irregular, restricted)
22
verboten(adjective, allow, illegal, allowed)
20
banned(verb, adjective, adverb, irregular, restricted)
17
illegal(adjective, adverb, offensive, unreasonable, improper)
16
taboo(adjective, adverb, allow, informal, irregular)
14
proscribed(verb, adjective, irregular, unwarranted, illegitimate)
11
outlawed(verb, adjective, offensive, irregular, unwarranted)
9
disallowed(verb, adjective, excluded)
8
barred(verb, adjective, excluded)
8
out of bounds(expression, adjective, idiom, restricted)
6
contraband(adjective, unlawful, banned, outlawed)
6
off limits(expression, adjective, idiom, offensive, permitted)
6
unmentionable(adjective, offensive, permitted, unspeakable)
5
refused(verb, adjective, outlawed)
5
rejected(verb, adjective, excluded)
5
restricted(verb, adjective, offensive, permitted)
5
unacceptable(adjective, offensive, permitted, unthinkable)
5
vetoed(adjective, outlawed)
4
denied(verb, adjective, excluded)
4
forbade(verb, excluded)
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APASmart Define. (2015). forbidden thesaurus. Retrieved September 23, 2026, from https://smartdefine.org/forbidden/thesaurus/synonyms
ChicagoSmart Define. 2015. "forbidden thesaurus" https://smartdefine.org/forbidden/thesaurus/synonyms (accessed September 23, 2026).
HarvardSmart Define 2015, forbidden thesaurus, Smart Define, viewed 23 September, 2026, <https://smartdefine.org/forbidden/thesaurus/synonyms>.
MLASmart Define. "forbidden thesaurus" 10 April 2015. Web. 23 September 2026. <https://smartdefine.org/forbidden/thesaurus/synonyms>