3
evildoing(adjective, wicked)
3
grievous(unreasonable, improper, unwarranted, prejudiced, unjust)
3
grim
3
grisly
3
guilty(adjective, bad, wrong, evil, wicked)
3
horrendous(terrible, shocking, shameful, atrocious, disgraceful)
3
ill(adjective, bad, evil)
3
inhuman(adjective, wicked, shocking, shameful, disgraceful)
3
injurious(adjective, bad, corrupt, unreasonable, immoral)
3
lewd(adjective, corrupt, wicked, depraved, dissolute)
3
loathsome(adjective, bad, evil, offensive, unpleasant)
3
malignant
3
odious(adjective, evil, terrible, wicked, immoral)
3
opprobrious(adjective, evil, wicked, immoral, shocking)
3
sordid
2
barbaric(adjective, shocking, shameful, disgraceful)
2
beastly(terrible, corrupt, immoral, shocking, atrocious)
2
blamable(bad, evil, wicked)
2
contemptible(adjective, wrong, evil, shocking, depraved)
2
contemptuous
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APASmart Define. (2015). iniquitous thesaurus. Retrieved September 26, 2026, from https://smartdefine.org/iniquitous/thesaurus/synonyms
ChicagoSmart Define. 2015. "iniquitous thesaurus" https://smartdefine.org/iniquitous/thesaurus/synonyms (accessed September 26, 2026).
HarvardSmart Define 2015, iniquitous thesaurus, Smart Define, viewed 26 September, 2026, <https://smartdefine.org/iniquitous/thesaurus/synonyms>.
MLASmart Define. "iniquitous thesaurus" 3 August 2015. Web. 26 September 2026. <https://smartdefine.org/iniquitous/thesaurus/synonyms>