English

Definition of drastically adverb from the Oxford Advanced Learner's Dictionary

 

drastically

 adverb
adverb
BrE BrE//ˈdræstɪkli//
 
, BrE//ˈdrɑːstɪkli//
 
; NAmE NAmE//ˈdræstɪkli//
 
 
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in an extreme way that has a sudden, serious or violent effect on something Output has been drastically reduced. Things have started to go drastically wrong.