unjumpableadj.
/(ˌ)ʌnˈdʒʌmpəbl/, U.S. /ˌənˈdʒəmpəb(ə)l/ That cannot be jumped or leapt over.
ΘΚΠ
the world > movement > motion in a certain direction > upward movement > leaping, springing, or jumping > [adjective] > that can be leaped or jumped > not
unjumpable1830
1830 Bell's Life in London 5 Dec. The brook in the bottom was unjumpable.
1886 Horse & Hound 4 Dec. 742 A fine fox..ran..by the side of the unjumpable bottom.
1903 G. Bosvile Pounding Field viii. 125 She..ought never to have ridden at an unjumpable jump.
1956 Times 8 Dec. 7/2 There is surely one unjumpable obstacle.
2007 Racing Post 14 Feb. 17/4 The going soggy enough to make the last fence unjumpable.
This entry has been updated (OED Third Edition, March 2018; most recently modified version published online March 2022).
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adj.1830