adjective
- Not open to challenge.
- usage: "unchallengeable facts"; "a position of unchallengeable supremacy"
WordNet 3.0 © 2006 by Princeton University
| APA | WordNet. (2010). unchallengeable. Retrieved September 21, 2026, from http://smartdefine.org/unchallengeable/definitions/1186205 |
| Chicago | WordNet. 2010. "unchallengeable" http://smartdefine.org/unchallengeable/definitions/1186205 (accessed September 21, 2026). |
| Harvard | WordNet 2010, unchallengeable, Smart Define, viewed 21 September, 2026, <http://smartdefine.org/unchallengeable/definitions/1186205>. |
| MLA | WordNet. "unchallengeable" 23 October 2010. Web. 21 September 2026. <http://smartdefine.org/unchallengeable/definitions/1186205> |