Synonyms|23Antonyms|1|Broader|0Narrower|0Related|0
1
banned
1
barred
1
contraband
1
forbidden
1
illegal
1
illicit
1
inexcusable(adjective, forgivable)
1
off limits
1
out of bounds(expression, idiom)
1
outlawed
1
prohibited
1
taboo
1
tabu
1
unallowed
1
unauthorized
1
unlawful
1
unlicensed
1
unsanctioned
1
untouchable
1
verboten
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APASmart Define. (2015). unpermissible thesaurus. Retrieved September 21, 2026, from https://smartdefine.org/unpermissible/thesaurus/synonyms
ChicagoSmart Define. 2015. "unpermissible thesaurus" https://smartdefine.org/unpermissible/thesaurus/synonyms (accessed September 21, 2026).
HarvardSmart Define 2015, unpermissible thesaurus, Smart Define, viewed 21 September, 2026, <https://smartdefine.org/unpermissible/thesaurus/synonyms>.
MLASmart Define. "unpermissible thesaurus" 14 April 2015. Web. 21 September 2026. <https://smartdefine.org/unpermissible/thesaurus/synonyms>