(Photo credit: Wikipedia)
“The local authorities are not giving us any money, so our project is up in the air.”
To be up in the air means to be uncertain or undefined.
Some more examples to get a better idea of how to use it:
– Meanwhile, control of Telemedia remains up in the air (The Economist)
– What about the current recession? A great deal is still up in the air, of course (The Economist).
Confessions of the Linguistic Spy 