leave up in the air
leave (up) in the air
1. To allow something to remain uncertain, unresolved, or subject to change. A noun or pronoun is used between "leave" and "(up) in the air." We had the whole business merger mapped out, but this sudden tax law change has left everything up in the air. Don't leave your financial plans in the air—contact one of our chartered accountants today!
2. To make someone wait to find out about something. A noun or pronoun is used between "leave" and "(up) in the air." Well, don't leave me in the air—how did your date go? My interview was over a week ago, and they're still leaving me up in the air about whether I got the job or not.
leave someone up in the air
Fig. to leave someone waiting for a decision. Please don't leave me up in the air. I want to know what's going to happen to me. Nothing was decided, and they left me up in the air.
leave something up in the air
Fig. to leave a matter undecided. (Alludes to something drifting in the air, moving neither up nor down.) Let's get this settled now. I don't want to leave anything up in the air over the weekend. The whole matter was left up in the air for another week.