33 entries under illegitimate topic. ×

38
unlawful(adjective, adverb, law, wrong, corrupt)
30
criminal(adjective, wrong, evil, dishonest)
28
illicit(adjective, adverb, law, criminal, legal)
24
unauthorized(adjective, permitted, prohibition, sanctioned)
22
prohibited(adjective, adverb, offensive, permitted)
18
wrongful(adjective, law, corrupt, dishonest, unwarranted)
16
felonious(adjective, wrong, wicked, senseless, criminal)
11
lawless(adjective, law, wrong, wicked, senseless)
11
crooked(adjective, bad, wrong, fake, corrupt)
10
unlicensed(adjective, prohibition, pirate, unlawful)
10
outlawed(adjective, law, offensive, permitted)
7
banned(adjective, adverb, offensive, permitted)
7
contraband(adjective, prohibition, pirate, unlawful)
7
improper(adjective, bad, wrong, dishonest, immoral)
7
bootleg(adjective, pirate, unlawful, prohibited)
6
proscribed(adjective, offensive, permitted, unlawful)
5
dishonest(adjective, bad, wrong, fake, corrupt)
5
iniquitous(adjective, wrong, corrupt, wicked, unreasonable)
5
shady(adjective, bad, wrong, corrupt, vicious)
5
unwarranted(adjective, unreasonable, improper, excessive, iniquitous)
<12>
11 years ago|10k views|share |citing 
APASmart Define. (2015). illegal thesaurus. Retrieved September 25, 2026, from https://smartdefine.org/illegal/thesaurus/synonyms
ChicagoSmart Define. 2015. "illegal thesaurus" https://smartdefine.org/illegal/thesaurus/synonyms (accessed September 25, 2026).
HarvardSmart Define 2015, illegal thesaurus, Smart Define, viewed 25 September, 2026, <https://smartdefine.org/illegal/thesaurus/synonyms>.
MLASmart Define. "illegal thesaurus" 10 April 2015. Web. 25 September 2026. <https://smartdefine.org/illegal/thesaurus/synonyms>