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
first and foremost
the first and most important
First and foremost, we need a new computer for our office.