drastically
Concise Oxford English Dictionary © 2008 Oxford University Press:
drastic /ˈdrastɪk, ˈdrɑː-/
▶adjective having a strong or far-reaching effect; radical and extreme.
– derivatives
drastically adverb.
drastically adverb.
– origin C17: from Gk drastikos, from dran ‘do’.
'drastically' also found in these Oxford entries:

