Resultory condition – in the legal practice, this legal term applies in the Law of Contracts. There it refers to a condition, agreed by the parties to establish refund of the paid debt. In other words when this condition (or event) occurs, the creditor has to return the debt back to the debtor. And example is a property purchase contract under its clauses the buyer pays the sale price of the property. If the contract is void, then the seller has to return the price back to the buyer.