radically
adv. degree B2 Upper Intermediate US //ˈɹædɪkɫi// UK //ɹˈædɪkli// rad·i·cal·ly
adv. in a way that changes the most basic parts of something. You use this when a change is deep and complete, not just small.
adv. in a way that affects the fundamental nature or structure of something; thoroughly and completely. Typically modifies verbs of change, reform, or difference.
The company changed its strategy radically.
The new law radically altered how schools teach history.
The invention of the internet radically transformed global communication, shrinking distances and accelerating the flow of information across borders.
From radical + -ly or radix (“root”) + -ally.