18 entries under inexcusable topic. ×

12
unpardonable(adjective, wrong, awful, terrible, unwarranted)
9
indefensible(adjective, wrong, unwarranted, forgiveness, unjustified)
8
unjustifiable(adjective, unwarranted, forgiveness, unjustified, undeserved)
6
inexpiable(adjective, unpardonable)
6
reprehensible(adjective, unpardonable)
5
untenable
4
deplorable(adjective, unjustifiable)
4
disgraceful
3
wrong(adjective, unwarranted, unfair, undue, indefensible)
2
shameful
2
unconscionable
2
blameworthy
2
unallowable
1
uncalled-for(unwarranted, unjustified, undeserved, unjustifiable, indefensible)
0
outrageous
0
contemptible
0
not forgivable
0
unpermissible
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APASmart Define. (2015). unforgivable thesaurus. Retrieved September 29, 2026, from https://smartdefine.org/unforgivable/thesaurus/synonyms
ChicagoSmart Define. 2015. "unforgivable thesaurus" https://smartdefine.org/unforgivable/thesaurus/synonyms (accessed September 29, 2026).
HarvardSmart Define 2015, unforgivable thesaurus, Smart Define, viewed 29 September, 2026, <https://smartdefine.org/unforgivable/thesaurus/synonyms>.
MLASmart Define. "unforgivable thesaurus" 10 April 2015. Web. 29 September 2026. <https://smartdefine.org/unforgivable/thesaurus/synonyms>