Use this phrase when discussing plans, decisions, or situations that are not finalized or are uncertain.
"Up in the air" Usage Examples
Our vacation plans are still up in the air until we get confirmation from the hotel.
The project's future is up in the air after the recent budget cuts.
She has a job offer, but her acceptance is still up in the air as she weighs her options.
With the weather forecast being unpredictable, our outdoor event is up in the air.
The meeting about the merger left many details up in the air, and we need further discussions.
"Up in the air" Explained
The phrase 'up in the air' likely originates from the idea that something suspended above ground is not grounded or settled. Historically, it has been used to describe situations that are unresolved or unclear, similar to how an object in the air lacks a definite position or conclusion.