124 entries under adjective topic. ×

2
proscribed
2
shameful
2
unauthorised
2
unethical
2
unfair(unreasonable, extreme, improper, stiff)
2
ungenuine(fake, false, counterfeit, inferior)
2
unreasonable(extreme, improper, stiff, extravagant)
2
unwarrantable(extreme, irregular, improper, extravagant)
2
villainous(wrong, illegal, unlawful)
1
abominable
1
absonant(unreasonable, extreme, improper, stiff)
1
arbitrary(unreasonable, extreme, improper, stiff)
1
awful
1
bad
1
banned
1
basal
1
blameworthy
1
costing an arm and a leg(expression, idiom, extreme, improper)
1
dear(unreasonable, extreme, improper, stiff)
1
diabolic
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APASmart Define. (2015). illegitimate thesaurus. Retrieved September 27, 2026, from https://smartdefine.org/illegitimate/thesaurus/synonyms
ChicagoSmart Define. 2015. "illegitimate thesaurus" https://smartdefine.org/illegitimate/thesaurus/synonyms (accessed September 27, 2026).
HarvardSmart Define 2015, illegitimate thesaurus, Smart Define, viewed 27 September, 2026, <https://smartdefine.org/illegitimate/thesaurus/synonyms>.
MLASmart Define. "illegitimate thesaurus" 10 April 2015. Web. 27 September 2026. <https://smartdefine.org/illegitimate/thesaurus/synonyms>