extreme in a way that has a sudden, serious, or violent effect on something drastic measures/changes The government is threatening to take drastic action. a drastic shortage of food a drastic reduction in their standard of living Talk to me before you do anything drastic.
NAmE//ˈdræstɪkli//
adverb Output has been drastically reduced. Things have started to go drastically wrong.See drastic in the Oxford Advanced Learner's DictionaryCheck pronunciation: drastic