"Impertransible" is a word in ENGLISH

Incapable of being passed; not admitting a passage; as, an impassable road, mountain, or gulf.

Incapable of being passed over or surmounted; insurmountable; as, insuperable difficulties.

Incapable of being passed over, surmounted, or overcome; insuperable; as, insurmountable difficulty or obstacle.

Incapable of being transgressed; not to be passes over or crossed.

A phrase applied to Incorporeal rights, Incapable of manual tra-ditlon, and whlch must pass by mere dellv-ery of a deed