A couple of months ago, that seemed a dubious proposition.

A few years ago, such a dubious proposition would have been rejected out of hand.

Americans may be coming to believe that Europe can take care of itself, but this has proved a dubious proposition in the past.

Especially if one takes into account that reading is, generally speaking, a dubious proposition.

This rather dubious legal proposition has since been overruled, but don't expect the issue to be simply resolved in local, state, or even national politics.

But those savings, he said, are almost always dubious propositions in the long run.

That dubious proposition kept America away from full employment.

That was a dubious legal proposition for a plane on Chinese soil.

It is a dubious proposition, supported by little validated intelligence.

Its response was entitled 'A war on terrorism' - a highly dubious military proposition.