adverb
- In a perfidious manner.
- usage: "he was playing perfidiously one side against the other"
WordNet 3.0 © 2006 by Princeton University
| APA | WordNet. (2010). perfidiously. Retrieved September 21, 2026, from http://smartdefine.org/perfidiously/definitions/1252829 |
| Chicago | WordNet. 2010. "perfidiously" http://smartdefine.org/perfidiously/definitions/1252829 (accessed September 21, 2026). |
| Harvard | WordNet 2010, perfidiously, Smart Define, viewed 21 September, 2026, <http://smartdefine.org/perfidiously/definitions/1252829>. |
| MLA | WordNet. "perfidiously" 23 October 2010. Web. 21 September 2026. <http://smartdefine.org/perfidiously/definitions/1252829> |