(adv.) In a surly manner; sullenly.
Webster's Revised Unabridged Dictionary
| APA | Webster's. (2011). grumpily. Retrieved September 22, 2026, from http://smartdefine.org/grumpily/definitions/2013963 |
| Chicago | Webster's. 2011. "grumpily" http://smartdefine.org/grumpily/definitions/2013963 (accessed September 22, 2026). |
| Harvard | Webster's 2011, grumpily, Smart Define, viewed 22 September, 2026, <http://smartdefine.org/grumpily/definitions/2013963>. |
| MLA | Webster's. "grumpily" 27 May 2011. Web. 22 September 2026. <http://smartdefine.org/grumpily/definitions/2013963> |