up in the air   (TTS Sound)

The up_in_the_air has 2 Senses.

• up in the air
• 宙ぶらりん, 中ぶらりん
• very uncertain; "left everything up in the air"
• 非常に不確かな

• up in the air
• not yet determined; "plans are still up in the air"
• 未定、未使用