Synonyms|457Antonyms|115|Broader|9Narrower|12Related|204
1
forbade
1
fraudulent(adjective, fake, corrupt, dishonest, deceitful)
1
furtive
1
gnominious
1
hardly the thing(expression, idiom)
1
ignominious
1
ill-gotten
1
illegal dumping
1
illegality
1
illegally
1
illegitimacy
1
illicitly
1
illicitness
1
inaccurate(adjective, wrong)
1
inappropriate
1
indictable(wrong, senseless, unlawful, lawless, illicit)
1
ineligible
1
inept(adjective, unreasonable, improper, unwarranted, unnecessary)
1
infamous
1
informal
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APASmart Define. (2015). illegal thesaurus. Retrieved September 23, 2026, from https://smartdefine.org/illegal/thesaurus/synonyms
ChicagoSmart Define. 2015. "illegal thesaurus" https://smartdefine.org/illegal/thesaurus/synonyms (accessed September 23, 2026).
HarvardSmart Define 2015, illegal thesaurus, Smart Define, viewed 23 September, 2026, <https://smartdefine.org/illegal/thesaurus/synonyms>.
MLASmart Define. "illegal thesaurus" 10 April 2015. Web. 23 September 2026. <https://smartdefine.org/illegal/thesaurus/synonyms>