"Executory contract" 是一个法律术语，描述了一个合同在其主要条款和义务还没有完全履行的状态。

具体来说，当一个合同被称为 "executory" 时，这意味着合同的双方或至少一方仍有尚未履行的义务。换句话说，尚有一些承诺或行动尚未完成。

例如，如果A与B签署了一个购买和销售商品的合同，其中A agrees to deliver goods in a month, and B agrees to pay upon delivery，则在A交付商品并且B完成支付之前，这个合同是"executory"。

只有当合同的所有条款都被完全履行时，合同才会从"executory"状态转变为"executed"状态。

在中文中，"executory contract" 可以翻译为 "待执行合同" 或 "尚未履行的合同"。常见的executory contract有租赁协议、供货合同等。如：

An insurance contract is an executory contract in that the promises described in the insurance contract are to be executed in the future , and only after certain events ( losses ) occur.

保险合同是一种尚未履行的合同,因为合同上所载承诺将在未来履行,并且只有在发生某些事件或产生一定损失时才能够履行。

Contracts are also classified according to their state of performance. A contract that has been fully performed on both sides is called an executed contract. A contract that has not been fully performed on either side is called an executory contract.

合同还可以根据它们的履行状态进行分类合同双方均已经完全履行合同义务的,称为“已履行的合同”合同任何一方尚未完全履行其合同义务的,称为“尚未履行的合同”。