unmitigated

"You don't care if people think you an utter blackguard? You don't care if she and your children have to beg their bread?"

"Not a damn."

I was silent for a moment in order to give greater force to my next remark. I spoke as deliberately as I could.

"You are a most unmitigated cad."

"Now that you've got that off your chest, let's go and have dinner."