Untransform
To reverse engineer a process such that the output of the new process produces the input of the original transform process.
You get B from A using the data transformer. If you want to get back to A, you have to untransform the data.
untransformation
The process of resisting the opportunity to embrace and unlock the process of change.
The business remained in paralised state of untransformation. Unchanged, irrelevant and redundant.