(adv.) In a pestiferuos manner.
Webster's Revised Unabridged Dictionary
| APA | Webster's. (2011). pestiferously. Retrieved September 20, 2026, from http://smartdefine.org/pestiferously/definitions/2044324 |
| Chicago | Webster's. 2011. "pestiferously" http://smartdefine.org/pestiferously/definitions/2044324 (accessed September 20, 2026). |
| Harvard | Webster's 2011, pestiferously, Smart Define, viewed 20 September, 2026, <http://smartdefine.org/pestiferously/definitions/2044324>. |
| MLA | Webster's. "pestiferously" 27 May 2011. Web. 20 September 2026. <http://smartdefine.org/pestiferously/definitions/2044324> |