noun
- Law based on customary behavior. .
WordNet 3.0 © 2006 by Princeton University
| APA | WordNet. (2010). unwritten law. Retrieved September 22, 2026, from http://smartdefine.org/unwritten_law/definitions/1190398 |
| Chicago | WordNet. 2010. "unwritten law" http://smartdefine.org/unwritten_law/definitions/1190398 (accessed September 22, 2026). |
| Harvard | WordNet 2010, unwritten law, Smart Define, viewed 22 September, 2026, <http://smartdefine.org/unwritten_law/definitions/1190398>. |
| MLA | WordNet. "unwritten law" 23 October 2010. Web. 22 September 2026. <http://smartdefine.org/unwritten_law/definitions/1190398> |