unsfairpable 

A situation where a So Far As Is Reasonably Practicable (SFAIRP) safety argument cannot be sustained.

The intended design of the railway is unsfairpable.

unsfairpable by saferthan March 29, 2023

UNFAIRABLE 

It is the state of being unfair.

I can't take it! It is so UNFAIRABLE!

UNFAIRABLE by imbudjee April 14, 2014