egregious
The industry has taken steps to improve some egregiously bad practices.
The company acted egregiously in charging customers twice for this service.
This biography is full of information that is egregiously and provably wrong.
I believe that the police have egregiously violated my right to free speech.
Observers have claimed that the election was egregiously rigged.

SMART Vocabulary: related words and phrases

Serious and severe
acutely
acuteness
advanced
catastrophic
catastrophically
chronic
dire
fatal
grave
heaviness
hyperacute
non-fatal
non-serious
seriously
severe
stringent
terminal
terminally
toughness
utmost