Definition: Non-rescission is a legal concept in contract law that refers to the right of a party to rescind a contract, which means to cancel it. In other words, a non-rescission occurs when the parties agree to cancel or modify an agreement, but they do not intend to do so at the time of entering into the original contract. Non-rescission is usually granted by either one of the parties to the contract and may be sought under certain circumstances such as: 1. If