(1):

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

(2):

(a.) Aiming or willing to destroy; implacable; desperately hostile; flagitious; as, deadly enemies.

(3):

(a.) Subject to death; mortal.

(4):

(adv.) In a manner resembling, or as if produced by, death.

(5):

(adv.) Extremely.

(6):

(adv.) In an implacable manner; destructively.

(7):

(adv.) In a manner to occasion death; mortally.