One colleague referred to him as 'quite calculating and utterly ruthless'.
Times, Sunday Times
This week he has been almost utterly ruthless.
The Sun
The commander was only about 25 but had been in the business for a decade and appeared utterly ruthless.
Times, Sunday Times
He was a conman, a crook, a liar and utterly ruthless; he thought nothing of cheating old couples of their life savings.
Times, Sunday Times
I want you to be utterly ruthless, merciless and heartless as they have been to me.
The Sun