Up in the air

When we literally think about something up in the air, we have the idea that something’s floating or flying in the sky, perhaps an airplane or a balloon. But really if someone tells you that things are up in the air it means that these things are uncertain or unsure; definite plans have not been made yet.

“Jen have you set a date for the wedding yet?”

“Not exactly, things are still up in the air and we’re not sure if our families can make it on the day we wanted. ”