radically
Definitions
In a thorough or fundamental manner; completely.
In a way that departs significantly from tradition; innovatively or extremely.
Examples
The company decided to radically change its business model to stay competitive.
Her perspective on life shifted radically after she traveled across the globe.
The new software update radically improves the speed and efficiency of the system.
Synonyms
drastically fundamentally thoroughly completely entirely profoundly utterly
Antonyms
slightly superficially partially moderately minimally conservatively incrementally