adjective
- Very uncertain.
- usage: "left everything up in the air"
- Not yet determined.
- usage: "plans are still up in the air"
WordNet 3.0 © 2006 by Princeton University
| APA | WordNet. (2010). up in the air. Retrieved September 23, 2026, from http://smartdefine.org/up_in_the_air/definitions/1187600 |
| Chicago | WordNet. 2010. "up in the air" http://smartdefine.org/up_in_the_air/definitions/1187600 (accessed September 23, 2026). |
| Harvard | WordNet 2010, up in the air, Smart Define, viewed 23 September, 2026, <http://smartdefine.org/up_in_the_air/definitions/1187600>. |
| MLA | WordNet. "up in the air" 23 October 2010. Web. 23 September 2026. <http://smartdefine.org/up_in_the_air/definitions/1187600> |