35 entries under adjective topic. ×

13
inexcusable(wrong, unwarranted, forgiveness, unjustified)
12
unpardonable(wrong, awful, terrible, unwarranted)
9
indefensible(wrong, unwarranted, forgiveness, unjustified)
8
unjustifiable(unwarranted, forgiveness, unjustified, undeserved)
6
inexpiable(inexcusable, unpardonable)
6
reprehensible(inexcusable, unpardonable)
5
untenable
4
deplorable(unjustifiable, inexcusable)
4
disgraceful
3
unreasonable(unwarranted, unfair, undue)
3
unwarrantable
3
wrong(unwarranted, unfair, undue, indefensible)
2
shameful
2
awful
2
unconscionable
2
unwarranted(unfair, unjustified, undue, undeserved)
2
blameworthy
2
execrable
2
intolerable
2
unallowable
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APASmart Define. (2015). unforgivable thesaurus. Retrieved September 28, 2026, from https://smartdefine.org/unforgivable/thesaurus/synonyms
ChicagoSmart Define. 2015. "unforgivable thesaurus" https://smartdefine.org/unforgivable/thesaurus/synonyms (accessed September 28, 2026).
HarvardSmart Define 2015, unforgivable thesaurus, Smart Define, viewed 28 September, 2026, <https://smartdefine.org/unforgivable/thesaurus/synonyms>.
MLASmart Define. "unforgivable thesaurus" 10 April 2015. Web. 28 September 2026. <https://smartdefine.org/unforgivable/thesaurus/synonyms>