What does "deadly" mean?

Deadly: Aiming or willing to destroy; implacable; desperately hostile; flagitious; as, deadly enemies. Thy assailant is quick, skillful, and deadly. Shak.

Additional senses

  1. 2.Subject to death; mortal. [Obs.] The image of a deadly man. Wyclif (Rom. i. 23). Deadly nightshade (Bot.), a poisonous plant; belladonna. See under Nightshade.
  2. 3.In a manner resembling, or as if produced by, death. "Deadly pale." Shak.
  3. 4.In a manner to occasion death; mortally. The groanings of a deadly wounded man. Ezek. xxx.
  4. 5.3. In an implacable manner; destructively.
  5. 6.Extremely. [Obs.] "Deadly weary." Orrery. "So deadly cunning a man." Arbuthnot.

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