- causing death; deadly; fatal.
- like death: a deathly silence.
- of, relating to, or indicating death; morbid: a deathly odor from the sepulcher.
- in the manner of death.
- very; utterly: deathly afraid.
- resembling deatha deathly quiet
Old English deaþlic “mortal” (see death). Meaning “deadly” is from late 12c.; that of “death-like” is from 1560s.