What is the legal term for failure to fulfill a contract?

The correct answer is “breach of contract,” which refers to a situation where one party fails to perform their obligations as stipulated in a contract. This legal term encompasses various scenarios, such as not completing the work as agreed, failing to pay on time, or not adhering to the terms laid out in the contract. A breach can be partial or material, and depending on the nature of the breach, it can lead to legal consequences and the potential for the injured party to seek damages or enforcement of the contract.

The other terms do not correctly represent the concept of failing to fulfill a contract. "Contract extension" refers to an agreement to prolong the duration of the contract, "contract endorsement" generally involves approving or supporting the terms of a contract, and "contract modification" indicates a change or alteration to existing terms. None of these terms encapsulate the idea of failing to fulfill contractual obligations, which is why "breach of contract" is the most accurate term in this context.