62 entries under illegal topic. ×

4
forbidden
4
peccant(adjective, wrong, wicked, unlawful)
3
off base(expression, adjective, wrong, unlawful)
3
out of line(expression, adjective, idiom, wrong)
3
senseless(adjective, wrong, unlawful, lawless)
3
underhand(adjective, evil, corrupt, dishonest, shady)
3
unlicensed(adjective, irregular, unwarranted, illegitimate)
3
verboten
2
black-market(irregular, unwarranted, illegitimate, unlawful)
2
caught(adjective, wrong, unlawful, lawless)
2
contrary to law(expression, idiom, illicit)
2
dishonorable(adjective, evil, fake, corrupt, wicked)
2
unwarrantable(irregular, unwarranted, illegitimate, unlawful)
1
extralegal(irregular, unwarranted, illegitimate, unlawful)
1
hung up(expression, adjective, wrong, unlawful)
1
not legal(expression, irregular, unwarranted, illegitimate)
1
racket(adjective, wrong, irregular, unwarranted)
1
smoking gun(expression, adjective, wrong, unlawful)
1
taboo
1
wildcat(adjective, wrong, irregular, unwarranted)
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APASmart Define. (2016). criminal thesaurus. Retrieved September 28, 2026, from https://smartdefine.org/criminal/thesaurus/synonyms
ChicagoSmart Define. 2016. "criminal thesaurus" https://smartdefine.org/criminal/thesaurus/synonyms (accessed September 28, 2026).
HarvardSmart Define 2016, criminal thesaurus, Smart Define, viewed 28 September, 2026, <https://smartdefine.org/criminal/thesaurus/synonyms>.
MLASmart Define. "criminal thesaurus" 28 March 2016. Web. 28 September 2026. <https://smartdefine.org/criminal/thesaurus/synonyms>