Nor was a bow possible, the flat sound-board being an insuperable impediment. Yet the logical positivists ran into insuperable difficulties. The reforms planned by the sultans faced insuperable difficulties. The practical difficulties of enforcing this penalty would be insuperable. The difficulties of understanding it otherwise are insuperable. The revolutionary system proved to have insuperable technical difficulties and was abandoned. There seem to be insuperable objections to every general theory about it. The Estonians were short of men and facing insuperable odds. Insuperable opposition from powerful landowners made the scheme impossible to pursue, and it was dropped. It wasn't made for the right reasons, and that is most often an insuperable handicap. In the Rigi drawings he is the insuperable master of technique. What else is it that should trace the insuperable line? He finished the provincial season with an insuperable batting average of 120.20 from ten innings.