noun
- A final peremptory demand. .
WordNet 3.0 © 2006 by Princeton University
| APA | WordNet. (2010). ultimatum. Retrieved September 20, 2026, from http://smartdefine.org/ultimatum/definitions/1219190 |
| Chicago | WordNet. 2010. "ultimatum" http://smartdefine.org/ultimatum/definitions/1219190 (accessed September 20, 2026). |
| Harvard | WordNet 2010, ultimatum, Smart Define, viewed 20 September, 2026, <http://smartdefine.org/ultimatum/definitions/1219190>. |
| MLA | WordNet. "ultimatum" 23 October 2010. Web. 20 September 2026. <http://smartdefine.org/ultimatum/definitions/1219190> |