pipe dream

Defeated multiple times in the past, this bill would carve out an exception for small modular reactors, or SMRs, the current pipe dream of nuclear advocates.

However, the high bar for constitutional amendments makes Ogles' proposal a pipe dream - although it got people talking.

But creating conditions in which such examples can flourish may seems like a pipe dream as America risks descending into autocracy, where no dialogue is possible or permitted.

He is so angry because Ms Ismail's great expectation is not necessarily a pipe dream, at least in the long term.

Security Council, additional sanctions are a pipe dream for the foreseeable future, while those on the books already are meekly enforced.