Related Clues:
- NASA postponement
- Child's taboo
- Jaywalking, e.g
- "Mission aborted"
- Something bad
- Non-starter (colloq.)
- Colloquial word for an impossibility or non-starter
- Prohibited or barricaded area
- A small number turn in vain
- Prohibited area
- Failure (colloq.)
- Futile area
- Barricaded area
- Deoxygenated failure?
- Doctor, doctor -- I'm a failure!