| catastrophe(help, favor) | |
| bad fortune(noun, expression, favor, disadvantage) | |
| infelicity | |
| misfortune(noun, help, favor, ease) |
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| APA | Smart Define. (2016). boon thesaurus. Retrieved September 25, 2026, from https://smartdefine.org/boon/thesaurus/antonyms |
| Chicago | Smart Define. 2016. "boon thesaurus" https://smartdefine.org/boon/thesaurus/antonyms (accessed September 25, 2026). |
| Harvard | Smart Define 2016, boon thesaurus, Smart Define, viewed 25 September, 2026, <https://smartdefine.org/boon/thesaurus/antonyms>. |
| MLA | Smart Define. "boon thesaurus" 23 March 2016. Web. 25 September 2026. <https://smartdefine.org/boon/thesaurus/antonyms> |