Anything Morgan might say or do at this point would only increase the difficulty.
His silence increased the difficulty of forming any new plan.
So distant and definite a point seemed to increase the difficulty.
That large size can increase the cost and difficulty of handling movie files.
Rule bending games that increase the difficulty of a dance.
Corporations had increased difficulty recruiting people to come to work in the region.
This greatly increased the difficulty of an otherwise simple task.
Some levels must be completed within a Qualification time, to increase difficulty.
Moral considerations greatly increase the difficulty of clear thinking in this matter.
He reached out and touched the level display, increasing the difficulty from seven to nine.