unseizable

comparative more unseizable · superlative most unseizable

1. That cannot be seized or grasped.

   For a moment she was lost in the pursuit of an unseizable clue--the explanation of this monstrous last perversity of fate.

   1913, Edith Wharton, The Custom of the Country

   2 more examples

   A large packet of 'Text Books'--left for that purpose by Norrish, if the truth were known-- whose covers were the same color as those of the 'Fruits', attracted Mr. Outram's attention, and he took off some of the brown paper wrapper, but found the goods unseizable.

   1885, Annie Besant, Autobiographical Sketches

   He eluded all pursuit, and his name--or at least the name he gave himself--was known all over the world, and inspired horror and terror everywhere, as being that of a legendary personage, a bogey, invisible and unseizable.

   1897, Mrs. Cashel Hoey, Facing the Flag