(adv.) In a grumbling manner.
Webster's Revised Unabridged Dictionary
| APA | Webster's. (2011). grumblingly. Retrieved September 20, 2026, from http://smartdefine.org/grumblingly/definitions/2013957 |
| Chicago | Webster's. 2011. "grumblingly" http://smartdefine.org/grumblingly/definitions/2013957 (accessed September 20, 2026). |
| Harvard | Webster's 2011, grumblingly, Smart Define, viewed 20 September, 2026, <http://smartdefine.org/grumblingly/definitions/2013957>. |
| MLA | Webster's. "grumblingly" 27 May 2011. Web. 20 September 2026. <http://smartdefine.org/grumblingly/definitions/2013957> |