We found 4 dictionaries that define the word be up in the air:

General (3 matching dictionaries)

1. be up in the air: Longman Dictionary of Contemporary English

Miscellaneous (1 matching dictionary)

2. be up in the air: Idioms

▸ Words similar to be up in the air ▸ Usage examples for be up in the air ▸ Idioms related to be up in the air ▸ Wikipedia articles (New!) ▸ Words that often appear near be up in the air ▸ Rhymes of be up in the air ▸ Invented words related to be up in the air