— deadliness , n.
/ded"lee/ , adj., deadlier, deadliest , adv.
adj.
1. causing or tending to cause death; fatal; lethal: a deadly poison.
2. aiming to kill or destroy; implacable: a deadly enemy.
3. like death: a deadly pallor.
4. excruciatingly boring: The dinner party was absolutely deadly.
5. excessive; inordinate: deadly haste.
6. extremely accurate: Annie Oakley was a deadly shot.
adv.
7. in a manner resembling or suggesting death: deadly pale.
8. excessively; completely: deadly dull.
[ bef. 900; ME deedli ( ch ), OE deadlice. See DEAD, -LY ]
Syn. 1. See fatal. 4. dull, tedious, tiresome.