adj.
1.causing or capable of causing death
2.of an instrument of certain death
3.extremely poisonous or injurious
4.involving loss of divine grace or spiritual death
5.exceedingly harmful
6.(of a disease) having a rapid course and violent effect deadly adv.
1.as if dead
2.as if produced by death
3.(used as intensives) extremely
Idiom of the Day
scream bloody murder
to complain bitterly about something
The woman screamed bloody murder when someone took her parking place.