- Impracticable
- Nonviable
- An empty space
- Avoid clearing leader’s space
- Completely empty
- Declare invalid
- Empty
- Empty space
- Gap
- Desperate
- Incompetent
- Irremediable
- It's futile without comedian Bob
- It’s futile without comedian Bob
- nonviable
- Very bad or incompetent
- Absurd
- Far-fetched
- Impractical
- nonviable
- Pie-in-the-sky
- Pie-in-the-sky airline cuts need refining
- Unworkable
- A critical MP let loose “Useless!”
- I’m sensible but idealistic
- Inefficient, silly
- Nonviable
- Not sensible
- Silly, inefficient
- Unrealistic