dras ‧ tic /ˈdræstɪk/ BrE AmE adjective
[ Date: 1600-1700 ; Language: Greek ; Origin: drastikos , from dran 'to do' ]
extreme and sudden
drastic action/measures
NATO threatened drastic action if its terms were not met.
drastic cuts in government spending
Drastic changes are needed if environmental catastrophe is to be avoided.
—drastically /-kli/ adverb :
The size of the army was drastically cut.