- Definitions|1
- Thesaurus|241
- Abbreviations|0
| impermissible | |
| impertinent(unwarranted, unjustified, undeserved) | |
| inappropriate(unwarranted, unjustified, undeserved) | |
| indecorous(unwarranted, unjustified, undeserved) | |
| inequitable(wrong, unwarranted, unfair, unjustified, undue) | |
| inessential(unwarranted, unjustified, undeserved) | |
| influenced(wrong, unwarranted, unfair, unjustified, undue) | |
| inordinate | |
| low-down(unwarranted, unfair, undue) | |
| needless(unwarranted, unjustified, undeserved) | |
| nonessential(unwarranted, unjustified, undeserved) | |
| not excusable(expression, idiom) | |
| not fair(expression, wrong, unwarranted, unfair, unjustified) | |
| not forgivable(adjective, inexcusable) | |
| not required(expression, unwarranted, unjustified, undeserved) | |
| one-sided(wrong, unwarranted, unfair, unjustified, undue) | |
| optional(unwarranted, unjustified, undeserved) | |
| out-and-out | |
| partial(wrong, unwarranted, unfair, unjustified, undue) | |
| partisan(wrong, unwarranted, unfair, unjustified, undue) |
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| APA | Smart Define. (2015). unforgivable thesaurus. Retrieved September 28, 2026, from https://smartdefine.org/unforgivable/thesaurus/synonyms |
| Chicago | Smart Define. 2015. "unforgivable thesaurus" https://smartdefine.org/unforgivable/thesaurus/synonyms (accessed September 28, 2026). |
| Harvard | Smart Define 2015, unforgivable thesaurus, Smart Define, viewed 28 September, 2026, <https://smartdefine.org/unforgivable/thesaurus/synonyms>. |
| MLA | Smart Define. "unforgivable thesaurus" 10 April 2015. Web. 28 September 2026. <https://smartdefine.org/unforgivable/thesaurus/synonyms> |