Dead on arrival is a term typically used in medical contexts to describe patients who are pronounced dead upon arrival at the hospital or emergency room. However, it is also commonly used colloquially to describe situations or things that are completely unworkable or flawed from the outset. Some common synonyms for dead on arrival include non-starter, unfeasible, impractical, impossible, hopeless, and futile. Other related terms might include "a lost cause," "a waste of time," or "a lost opportunity." In any case, the underlying meaning remains the same- something that has no chance of success, no matter how hard you try.