9 entries under prohibited topic. ×

29
illegal(adjective, law, criminal, legal, illegal)
11
outlawed(adjective, law, irregular, unwarranted, criminal)
5
against the law(expression, adjective, idiom, wrong, illegal)
2
off-limits(adjective, adverb, not)
2
unwarrantable(irregular, unwarranted, criminal, illegal, illegitimate)
1
extralegal(irregular, unwarranted, criminal, illegal, illegitimate)
1
not approved(expression, irregular, unwarranted, criminal, illegitimate)
1
outside the law(expression, irregular, unwarranted, criminal, illegitimate)
1
under the table(expression, adjective, irregular, unwarranted, criminal)
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APASmart Define. (2015). illicit thesaurus. Retrieved September 23, 2026, from https://smartdefine.org/illicit/thesaurus/synonyms
ChicagoSmart Define. 2015. "illicit thesaurus" https://smartdefine.org/illicit/thesaurus/synonyms (accessed September 23, 2026).
HarvardSmart Define 2015, illicit thesaurus, Smart Define, viewed 23 September, 2026, <https://smartdefine.org/illicit/thesaurus/synonyms>.
MLASmart Define. "illicit thesaurus" 13 April 2015. Web. 23 September 2026. <https://smartdefine.org/illicit/thesaurus/synonyms>