15
forbidden(adjective, allow, illegal, allowed, prohibited)
14
taboo(adjective, allow, illegal, allowed)
13
prohibited(adjective, allowed)
9
illegal(adjective, illegal)
9
proscribed
8
tabu(adjective, allowed)
7
banned(adjective, allowed)
7
illicit(adjective, illegal)
7
unlawful(adjective, illegal)
6
out
6
unauthorized(adjective, illegal)
5
interdicted
5
outlawed
5
unlicensed(adjective, illegal)
4
illegitimate(adjective, illegal)
4
impermissible(adjective, allow, forbidden)
3
contraband(adjective, unlawful)
3
criminal(adjective, illegal)
3
disallowed(adjective, allowed)
3
felonious(adjective, illegal)
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APASmart Define. (2015). verboten thesaurus. Retrieved September 21, 2026, from https://smartdefine.org/verboten/thesaurus/synonyms
ChicagoSmart Define. 2015. "verboten thesaurus" https://smartdefine.org/verboten/thesaurus/synonyms (accessed September 21, 2026).
HarvardSmart Define 2015, verboten thesaurus, Smart Define, viewed 21 September, 2026, <https://smartdefine.org/verboten/thesaurus/synonyms>.
MLASmart Define. "verboten thesaurus" 13 April 2015. Web. 21 September 2026. <https://smartdefine.org/verboten/thesaurus/synonyms>