Found 2 items, similar to unsurmountable.
English → English (WordNet) Definition: unsurmountable unsurmountable adj 1: not capable of being surmounted or overcome; “insurmountable disadvantages” [syn: insurmountable] [ant: surmountable] 2: impossible to surmount or climb [syn: unclimbable]
English → English (gcide) Definition: Unsurmountable Unsurmountable \Un`sur*mount"a*ble\, a. Insurmountable. --Locke. [1913 Webster]