11
taboo(noun, verb, adjective)
8
forbidden
8
proscribed
7
prohibited
7
verboten(adjective, allowed)
5
out
4
banned(adjective, outlawed)
3
anathema(noun, adjective)
3
ban(noun, verb)
3
dirty
3
interdict(noun, verb)
3
interdicted
3
outlawed
3
unacceptable
3
unmentionable
3
unspeakable
2
censorable
2
censored
2
explicit
2
forbid
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APASmart Define. (2015). tabu thesaurus. Retrieved September 20, 2026, from https://smartdefine.org/tabu/thesaurus/synonyms
ChicagoSmart Define. 2015. "tabu thesaurus" https://smartdefine.org/tabu/thesaurus/synonyms (accessed September 20, 2026).
HarvardSmart Define 2015, tabu thesaurus, Smart Define, viewed 20 September, 2026, <https://smartdefine.org/tabu/thesaurus/synonyms>.
MLASmart Define. "tabu thesaurus" 10 April 2015. Web. 20 September 2026. <https://smartdefine.org/tabu/thesaurus/synonyms>