Answer: Reformation
Explanation:
Reformation is defined as the process in which something is changed and altered so that it can be turned towards the correct path. In terms of any pact or agreement,reformation is done as the corrective measure for discrepancy. In this way an individual can rewrite the pact's terms to define the intentions clearly as a fair remedy.
According to the mentioned situation in question ,cure for the covenant being regarded as unreasonable can be reformation to clarify the term and the intentions.This can correct the variation that is occurring to prove the covenant as beyond the acceptance limit.