0 an idea or plan that is impossible or very unlikely to happen: --
There was a time when this looked like an empty pipe dream.
Even to talk about it was a pipe dream, as was the possibility of a pension scheme.
Shutting ourselves off from the international market today is a mere pipe dream: it is not only impossible but it would also be damaging.
Totally banning the nuclear market at this time is a fantasy for the rich and a theoretical pipe dream about man's future!
Something so often denounced as a pipe dream, as an illusion, is now becoming reality.
It is not a pipe dream; it is realistic and also modern.
The consultation document of 1976 referred to this as a pipe dream.
That is not a pipe dream; it is a realistic and achievable aim.
