[with obj.](一般作 be backdated)(Brit.)make (something, especially a pay increase) retrospectively valid (英)使有追溯效力(尤指加薪) the company have agreed a 5 per cent increase, backdated to January 1. 公司同意加薪5%,追溯到1月1日有效。 ■put an earlier date to (a document or agreement) than the actual one (在文件或协议上)写较早的日期 they backdated the sale documents to evade a court order. 他们在销售协议上写上较早的日期以逃避法院指令。