Synonyms|211Antonyms|81|Broader|2Narrower|0Related|786
5
impermissible
5
wildcat(adjective, permitted, sanctioned)
4
actionable(adjective, illegal)
4
lawless(adjective, illegal)
4
outlawed
4
punishable(adjective, illegal)
4
taboo(adjective, illegal)
4
uncertified
3
banned
3
crooked(adjective, informal, permitted, sanctioned)
3
unaccredited
3
unallowed
3
unwarrantable(adjective, illegality)
2
irregular
2
against the law(expression, adjective, idiom)
2
dirty(adjective, informal, permitted, sanctioned)
2
extrajudicial
2
not permitted(expression, idiom, prohibition)
2
offensive(adjective, illegal)
2
out of bounds(expression, adjective, idiom, permitted, sanctioned)
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APASmart Define. (2015). unauthorized thesaurus. Retrieved September 22, 2026, from https://smartdefine.org/unauthorized/thesaurus/synonyms
ChicagoSmart Define. 2015. "unauthorized thesaurus" https://smartdefine.org/unauthorized/thesaurus/synonyms (accessed September 22, 2026).
HarvardSmart Define 2015, unauthorized thesaurus, Smart Define, viewed 22 September, 2026, <https://smartdefine.org/unauthorized/thesaurus/synonyms>.
MLASmart Define. "unauthorized thesaurus" 13 April 2015. Web. 22 September 2026. <https://smartdefine.org/unauthorized/thesaurus/synonyms>