- causing or tending to cause death; fatal; lethal: a deadly poison.
- aiming to kill or destroy; implacable: a deadly enemy.
- like death: a deadly pallor.
- excruciatingly boring: The dinner party was absolutely deadly.
- excessive; inordinate: deadly haste.
- extremely accurate: Annie Oakley was a deadly shot.
- in a manner resembling or suggesting death: deadly pale.
- excessively; completely: deadly dull.
- likely to cause death
- extremely boring
- like death in appearance or certainty
