Killing
Pronunciation : Kill"ing
Part of Speech : a.
Definition : Defn: Literally, that kills; having power to kill; fatal; in a colloquial sense, conquering; captivating; irresistible. -- Kill"ing*ly, adv. Those eyes are made so killing. Pope. Nothing could be more killingly spoken. Milton.
Source : Webster's Unabridged Dictionary, 1913