deadline (for something) a point in time by which something must be done I prefer to work to a deadline. The deadline for applications is 30 April. the January 15 deadline set by the United NationsExtra examples It will be a struggle to meet the deadline. She began to panic as the deadline approached. The Wednesday deadline passed without any communication from the rebel leader. The deadline for entries is noon Thursday. The deadline set by the High Court is Monday 3rd March. The deadline set by the court is Monday. We’re asking them to extend the deadline. We’re working to a very tight deadline.