9
felonious(adjective, wrong, wicked, criminal, illegal)
9
malevolent(adjective, bad, corrupt, wicked, immoral)
9
perverted(adjective, evil, wicked, immoral, deceitful)
9
profane(adjective, wicked)
9
reprehensible(adjective, bad, evil, wicked, immoral)
9
scandalous(adjective, bad, wrong, evil, offensive)
8
debased(adjective, wrong, evil, wicked, naughty)
8
demonic(adjective, wicked, execrable, diabolical)
8
devilish(adjective, wicked)
8
horrid(adjective, evil, offensive, unpleasant, base)
8
improper(adjective, wrong, wicked, unreasonable, unwarranted)
8
reprobate(adjective, bad, right, wrong, evil)
8
satanic(adjective, wicked, immoral, deceitful, contrary)
8
sinister(adjective, wicked)
8
unfair(adjective, wrong, wicked, unwarranted, prejudiced)
8
unholy(adjective, bad, evil, wicked, sacrilegious)
7
blasphemous
7
damnable(adjective, bad, evil, corrupt, vile)
7
hellish
7
indecent(adjective, bad, wrong, evil, offensive)
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APASmart Define. (2015). iniquitous thesaurus. Retrieved September 27, 2026, from https://smartdefine.org/iniquitous/thesaurus/synonyms
ChicagoSmart Define. 2015. "iniquitous thesaurus" https://smartdefine.org/iniquitous/thesaurus/synonyms (accessed September 27, 2026).
HarvardSmart Define 2015, iniquitous thesaurus, Smart Define, viewed 27 September, 2026, <https://smartdefine.org/iniquitous/thesaurus/synonyms>.
MLASmart Define. "iniquitous thesaurus" 3 August 2015. Web. 27 September 2026. <https://smartdefine.org/iniquitous/thesaurus/synonyms>