In Jamaican law, a unilateral contract is an agreement in which one party makes a promise in exchange for the performance of an act by another party, rather than a mutual exchange of promises. This type of contract is characterized by one party’s commitment to fulfill an obligation only upon the occurrence of a specified action or performance by the other party. For instance, a reward offer for the return of a lost item represents a unilateral contract, where the offeror promises a reward in exchange for the successful return of the item, and the contract is formed only when the act is completed. The enforceability of a unilateral contract in Jamaica hinges on the fulfillment of the act stipulated in the agreement, ensuring that the party making the promise is bound to deliver the promised benefit once the act is performed. This contract type underscores the principle that the promise is contingent upon the performance of the requested act, distinguishing it from bilateral contracts where mutual promises are exchanged.