The term PROGRESS DELAYER can be summarized as a SETBACK, which is a seven-letter word. A SETBACK is an event or situation that hinders progress or causes a delay in achieving a goal. It can refer to a variety of obstacles, such as financial difficulties, natural disasters, or political unrest. Setbacks can also be caused by personal issues, such as illness or injury. In any case, a SETBACK can cause a significant delay in achieving a desired outcome.