1.
If you have to take ~ action in order to solve a problem, you have to do something extreme and basic to solve it.
Drastic measures are needed to clean up the profession...
He’s not going to do anything ~ about economic policy.
= radical
ADJ
2.
A ~ change is a very great change.
...a ~ reduction in the numbers of people dying.
ADJ
~ally
As a result, services have been ~ally reduced.
ADV: ADV with v