Deadly

Part of speech: adjective (a.)

1. Capable of causing death; mortal; fatal; destructive; certain or likely to cause death; as, a deadly blow or wound.

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

3. 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.

Part of speech: adverb (adv.)

1. In a manner resembling, or as if produced by, death. "Deadly pale." Shak.

2. In a manner to occasion death; mortally. The groanings of a deadly wounded man. Ezek. xxx. 24.

3. In an implacable manner; destructively.

4. Extremely. [Obs.] "Deadly weary." Orrery. "So deadly cunning a man." Arbuthnot.