Up in the air
By Pamela, 4月 15 2019If you’re working on resolving an issue but the outcome is still uncertain, you can say it’s up in the air. This means that there are still actions or decisions that need to be made before it is settled.
If you’re planning a meeting or business trip but the exact details are not confirmed, you can say it’s up in the air. This implies that you have a general idea of what you’re going to do, but the details still need to be decided.