That you can't even get his name right completely discredits your argument.

We would have completely discredited those who had supported us.

But it does not mean that language is to be discredited completely:

The idea of home ownership being a good thing in its own right - an 'investment' - has been completely discredited by the credit collapse.

In this he entirely failed, and he returned home completely discredited.

"This completely discredits the regime's claim that she is being held in 'protective custody.' "

To be discredited completely, in spite of the solidest records we can make as to the truth and the danger?

Completely discredited, the curé said: a most unfortunate mistake.

"This group has been completely discredited," said Chad Clanton, a campaign spokesman.

Another senior official who asked not to be identified said: "The idea is for his leadership to be discredited completely and irrevocably.