It would have been prohibitively difficult to drag anything up.

He would have liked to but the trip was prohibitively expensive.

The method of editorial expression in the magazines of 1889 was also distinctly vague and prohibitively impersonal.

Group D, after the first raking, shows a prohibitively low and constantly decreasing capacity.

All water supply planning must consider it, for to build against any conceivable shortage would be prohibitively expensive.