Synonyms|285Antonyms|95|Broader|6Narrower|0Related|145
1
nonlegal
1
nonlicit
1
nonpermissible
1
not approved(expression, irregular, unwarranted, criminal, illegitimate)
1
not legal(expression, irregular, unwarranted, criminal, illegal)
1
not permitted
1
offensive(adjective, illegal)
1
out of line(expression, adjective, idiom, wrong, senseless)
1
outside the law(expression, irregular, unwarranted, criminal, illegitimate)
1
racket(adjective, wrong, irregular, senseless, unwarranted)
1
restricted
1
ruled out
1
shady(adjective, wrong, irregular, unwarranted, criminal)
1
sinful
1
spurious
1
tabooed
1
triable
1
unapproved
1
unauthorised
1
unconventional
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APASmart Define. (2015). illicit thesaurus. Retrieved September 22, 2026, from https://smartdefine.org/illicit/thesaurus/synonyms
ChicagoSmart Define. 2015. "illicit thesaurus" https://smartdefine.org/illicit/thesaurus/synonyms (accessed September 22, 2026).
HarvardSmart Define 2015, illicit thesaurus, Smart Define, viewed 22 September, 2026, <https://smartdefine.org/illicit/thesaurus/synonyms>.
MLASmart Define. "illicit thesaurus" 13 April 2015. Web. 22 September 2026. <https://smartdefine.org/illicit/thesaurus/synonyms>