- Definitions|1
- Thesaurus|989
- Abbreviations|0
| illegal(adjective, wrong, unreasonable, dishonest, improper) | |
| intolerable | |
| needless(adjective, improper, excessive, unwarranted, unnecessary) | |
| preposterous | |
| reprehensible | |
| undeserved(adjective, unreasonable, improper, excessive, unwarranted) | |
| uneven(adjective, unjust) | |
| unfit | |
| unmerited(adjective, unwarranted, iniquitous, unjust, unjustified) | |
| unprovoked(excessive, unwarranted, unnecessary, immoderate, unjustified) | |
| unsportsmanlike(adjective, unjust) | |
| unsupportable | |
| venal(adjective, unjust) | |
| wicked(unreasonable, improper, unwarranted, prejudiced, iniquitous) | |
| wilful | |
| accusable | |
| blameworthy(unreasonable, improper, unwarranted, prejudiced, iniquitous) | |
| bottomless | |
| costing an arm and a leg(expression, adjective, idiom, extreme, improper) | |
| deplorable |
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| APA | Smart Define. (2015). unjustifiable thesaurus. Retrieved September 27, 2026, from https://smartdefine.org/unjustifiable/thesaurus/synonyms |
| Chicago | Smart Define. 2015. "unjustifiable thesaurus" https://smartdefine.org/unjustifiable/thesaurus/synonyms (accessed September 27, 2026). |
| Harvard | Smart Define 2015, unjustifiable thesaurus, Smart Define, viewed 27 September, 2026, <https://smartdefine.org/unjustifiable/thesaurus/synonyms>. |
| MLA | Smart Define. "unjustifiable thesaurus" 14 April 2015. Web. 27 September 2026. <https://smartdefine.org/unjustifiable/thesaurus/synonyms> |