179 entries under adjective topic. ×

38
unlawful(adverb, law, wrong, corrupt)
30
criminal(wrong, evil, dishonest, illegitimate)
28
illicit(adverb, law, criminal, legal)
25
illegitimate(law, wrong, corrupt, vicious)
24
unauthorized(permitted, illegitimate, prohibition, sanctioned)
22
prohibited(adverb, offensive, permitted, illegitimate)
18
wrongful(law, corrupt, dishonest, unwarranted)
16
felonious(wrong, wicked, senseless, criminal)
16
wrong(wrong, dishonest, immoral, worthless)
13
forbidden(verb, adverb, offensive, unreasonable)
11
lawless(law, wrong, wicked, senseless)
11
crooked(bad, wrong, fake, corrupt)
10
unlicensed(illegitimate, prohibition, pirate, unlawful)
10
outlawed(law, offensive, permitted, illegitimate)
10
verboten
9
taboo(permitted, allowed)
9
irregular
8
actionable
8
unjust(wicked, unreasonable, dishonest, immoral)
7
banned(adverb, offensive, permitted, illegitimate)
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APASmart Define. (2015). illegal thesaurus. Retrieved September 21, 2026, from https://smartdefine.org/illegal/thesaurus/synonyms
ChicagoSmart Define. 2015. "illegal thesaurus" https://smartdefine.org/illegal/thesaurus/synonyms (accessed September 21, 2026).
HarvardSmart Define 2015, illegal thesaurus, Smart Define, viewed 21 September, 2026, <https://smartdefine.org/illegal/thesaurus/synonyms>.
MLASmart Define. "illegal thesaurus" 10 April 2015. Web. 21 September 2026. <https://smartdefine.org/illegal/thesaurus/synonyms>