It means he is a great criminal--a really great criminal--one of the elect from whom crime has no secrets.
It takes brains to be a great criminal, Lester, and brains of a high order.
How naïvely he had confessed his thought that he would have made a great detective--or a great criminal; and here he was only a dealer in curios.
I feel sometimes that I would have made a great detective--or a great criminal.
He is a great criminal," said Pentuer; "a criminal of such kind that the earth has given few such.
For a man of that kind is a great criminal, a wizard, or a conspirator.
Well, you guard the exterior, and if he attempts to fly, fire upon him; he must be a great criminal, from what the telegraph says.
And if it attracts my attention as a great criminal problem, it is certain that I will try to solve it, whether on the force or off it.
The above list will hopefully provide you with a few useful examples demonstrating the appropriate usage of "great criminal" in a variety of sentences. We hope that you will now be able to make sentences using this group of words.