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The FindLaw Legal Dictionary -- free access to over 8260 definitions of legal terms. Search for a definition or browse our legal glossaries.


Preexisting Duty Rule

preexisting duty rule n

: a common-law rule of contracts: a party's offer of a performance already required under an existing contract is insufficient consideration for modification of the contract NOTE: This rule is not applicable to sales contracts in jurisdictions that have enacted the Uniform Commercial Code. It is also not applicable where there has been a rescission of the contract followed by a new contract.

Source: Merriam-Webster's Dictionary of Law ©1996. Merriam-Webster, Incorporated. Published under license with Merriam-Webster, Incorporated.

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