2
blameworthy(adjective, bad, wrong, cruel, unreasonable)
2
deplorable(adjective, unjustifiable)
2
extreme(insufferable, unbearable)
2
insupportable(insufferable, unbearable, unpardonable)
2
unconscionable
2
undue(adjective, unreasonable, improper, unwarranted, iniquitous)
1
accusable
1
arbitrary(adjective, cruel, unreasonable, dishonest, immoral)
1
bad(adjective, wrong, terrible, unreasonable, dishonest)
1
base(adjective, vile, unreasonable, dishonest, immoral)
1
beneath(vile, inappropriate, shameful, unfit, worthless)
1
biased(adjective, cruel, unreasonable, dishonest, immoral)
1
bigoted(adjective, cruel, unreasonable, dishonest, immoral)
1
censurable(adjective, forgivable)
1
cheating(adjective, cruel, unreasonable, dishonest, immoral)
1
contemptible(adjective, vile, shameful, unfit, worthless)
1
criminal(adjective, cruel, unreasonable, dishonest, immoral)
1
crooked(adjective, cruel, unreasonable, dishonest, immoral)
1
culpable(adjective, bad, wrong, cruel, unreasonable)
1
degrading(vile, shameful, unfit, worthless, unworthy)
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APASmart Define. (2015). inexcusable thesaurus. Retrieved September 22, 2026, from https://smartdefine.org/inexcusable/thesaurus/synonyms
ChicagoSmart Define. 2015. "inexcusable thesaurus" https://smartdefine.org/inexcusable/thesaurus/synonyms (accessed September 22, 2026).
HarvardSmart Define 2015, inexcusable thesaurus, Smart Define, viewed 22 September, 2026, <https://smartdefine.org/inexcusable/thesaurus/synonyms>.
MLASmart Define. "inexcusable thesaurus" 14 April 2015. Web. 22 September 2026. <https://smartdefine.org/inexcusable/thesaurus/synonyms>