drastically
Definitions
In a way that is likely to have a strong or far-reaching effect.
In a severe, radical, or extreme manner.
Examples
The company's profits have decreased drastically since the new management took over.
Temperatures are expected to drop drastically once the cold front moves into the region.
Synonyms
severely radically extremely significantly substantially dramatically harshly
Antonyms
slightly mildly minimally moderately negligibly gradually superficially