A prenuptial agreement can be contested. Once it has been challenged, the court will consider different factors to determine enforceability, such as whether the agreement was entered into voluntarily, whether the agreement is unconscionable (meaning, extremely unfair to one party), whether both spouses exchanged complete disclosure of their assets and debt, and whether they each had their own lawyer. If these standards were not met, the prenup could be found to be invalid, and its terms will not hold up in court.