124 entries under adjective topic. ×

6
baseborn(law, inferior, kin)
6
bogus(fake, deception, false)
6
contraband(deception, legal, illegality)
6
counterfeit(fake, deception, false, bogus)
6
unconstitutional(legal, illegal)
5
bootleg
5
irregular(inferior, unwarranted, criminal, unlawful)
4
adulterine
4
forbidden
4
incorrect
4
punishable
4
sham(fake, deception, false, inferior)
4
unjust(unreasonable, extreme, improper, stiff)
4
verboten
4
wicked(wrong, legal, illegal, unlawful)
4
wrong(corrupt, vicious, dishonest, improper)
3
against the law(expression, idiom, wrong, illegal)
3
clandestine(secret, sly)
3
crooked(wrong, irregular, unwarranted, illegal)
3
foul
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APASmart Define. (2015). illegitimate thesaurus. Retrieved September 26, 2026, from https://smartdefine.org/illegitimate/thesaurus/synonyms
ChicagoSmart Define. 2015. "illegitimate thesaurus" https://smartdefine.org/illegitimate/thesaurus/synonyms (accessed September 26, 2026).
HarvardSmart Define 2015, illegitimate thesaurus, Smart Define, viewed 26 September, 2026, <https://smartdefine.org/illegitimate/thesaurus/synonyms>.
MLASmart Define. "illegitimate thesaurus" 10 April 2015. Web. 26 September 2026. <https://smartdefine.org/illegitimate/thesaurus/synonyms>