Backordered refers to a situation where a product or item that has been ordered by a customer is currently out of stock and not immediately available for delivery. When an item is backordered, it means that the customer's order has been accepted, but the product is not yet available for shipping. The item is usually expected to become available for delivery at a future date, and the customer's order is typically held until the product becomes available. In essence, the customer's order is delayed due to the unavailability of the product.