...Well! I have an incessant gnawing, insurmountable fear that an hour will come in which I shall hold the dead body of that boy in my arms... 
Alexandre Dumas, Pere 「The Man in the Iron Mask」
...“If I have, let it be ascribed to the Lord, and not to me and my otherwise useless endeavours; it must be His doing; and without His aid and assistance, the difficulties would have been insurmountable...
Captain Frederick Marryat 「The Mission; or Scenes in Africa」
... Besides, the fox had now made for a dense forest which lay before, and he saw difficulties in that direction which to him appeared insurmountable...
William Wells Brown 「Clotelle」
...To effect this they are often obliged to travel a considerable distance,and if difficulties present themselves, insurmountable in any otherway, the parent bird carries the young in her bill...
Rev. C. A. Johns 「British Birds in their Haunts」
..." The serrated circles typify the abodes of these gods, which are protected by insurmountable barriers...
Edward S. Curtis 「The North American Indian」
...From the foregoing discussion it will be clear that there are verygrave, if not insurmountable, difficulties in the way of regarding the"terms of relationship" as being in reality such...
Northcote W. Thomas 「Kinship Organisations and Group Marriage in Australia」
...The early Christians coming into contact with theseconceptions, at first found an insurmountable difficulty in spreadingtheir beliefs among the rural inhabitants of the Roman empire...
Dr. D.M. Brooks 「The Necessity of Atheism」
... and cast an almost insurmountable obstacle in her path? ...
Marcus Clarke 「For the Term of His Natural Life」
...This range had for years presented an insurmountable barrier...
Alexander Sutherland 「History of Australia and New Zealand」
..., have constantly proved insurmountable...
Matthew Flinders 「A Voyage to Terra Australis」
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sisters makings burroughs
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