2
off limits(expression, off-limits)
2
taboo
1
banned
1
barred
1
contraband
1
forbidden
1
illegal
1
illicit
1
impermissible
1
not allowed(expression, off-limits)
1
out of bounds(expression, idiom)
1
outlawed
1
prohibited
1
tabu
1
unallowed
1
unauthorized
1
unlawful
1
unlicensed
1
unsanctioned
1
untouchable
<12>
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APASmart Define. (2015). not permitted thesaurus. Retrieved September 21, 2026, from https://smartdefine.org/not_permitted/thesaurus/synonyms
ChicagoSmart Define. 2015. "not permitted thesaurus" https://smartdefine.org/not_permitted/thesaurus/synonyms (accessed September 21, 2026).
HarvardSmart Define 2015, not permitted thesaurus, Smart Define, viewed 21 September, 2026, <https://smartdefine.org/not_permitted/thesaurus/synonyms>.
MLASmart Define. "not permitted thesaurus" 14 April 2015. Web. 21 September 2026. <https://smartdefine.org/not_permitted/thesaurus/synonyms>