| APA | Smart Define. (-0001). catastrophic event thesaurus. Retrieved October 1, 2026, from https://smartdefine.org/catastrophic_event/thesaurus/antonyms |
| Chicago | Smart Define. -0001. "catastrophic event thesaurus" https://smartdefine.org/catastrophic_event/thesaurus/antonyms (accessed October 1, 2026). |
| Harvard | Smart Define -0001, catastrophic event thesaurus, Smart Define, viewed 1 October, 2026, <https://smartdefine.org/catastrophic_event/thesaurus/antonyms>. |
| MLA | Smart Define. "catastrophic event thesaurus" 30 November -0001. Web. 1 October 2026. <https://smartdefine.org/catastrophic_event/thesaurus/antonyms> |