16
forbidden(verb, adjective, irregular, unwarranted, illegitimate)
13
prohibited(verb, adjective, irregular, unwarranted, illegal)
11
taboo(adjective, permitted, allowed)
9
banned(verb, adjective, irregular, unwarranted, illegitimate)
8
tabu
8
illegal(adjective, offensive, permitted, illegitimate, unlawful)
7
verboten
6
barred(verb, adjective, excluded)
6
disallowed(verb, adjective, excluded)
6
interdicted(verb, adjective)
6
out
6
outcast
6
outlawed(verb, adjective, offensive, irregular, unwarranted)
5
banished(verb, adjective, excluded)
5
deported(verb, adjective, excluded)
5
excluded(verb, adjective, prohibited, barred, excluded)
5
exiled(verb, adjective, excluded)
5
ostracized(verb, adjective, excluded)
4
blackballed(verb, adjective, excluded)
4
denied(verb, adjective, excluded)
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APASmart Define. (2015). proscribed thesaurus. Retrieved September 20, 2026, from https://smartdefine.org/proscribed/thesaurus/synonyms
ChicagoSmart Define. 2015. "proscribed thesaurus" https://smartdefine.org/proscribed/thesaurus/synonyms (accessed September 20, 2026).
HarvardSmart Define 2015, proscribed thesaurus, Smart Define, viewed 20 September, 2026, <https://smartdefine.org/proscribed/thesaurus/synonyms>.
MLASmart Define. "proscribed thesaurus" 13 April 2015. Web. 20 September 2026. <https://smartdefine.org/proscribed/thesaurus/synonyms>