Meaning of up in the air

up in the air

Anything that’s up in the air is uncertain or iffy. Are your birthday plans up in the air? That means you haven’t decided yet what you’ll do to celebrate.

Use the phrase up in the air to talk about something that’s undecided or unresolved. If your teacher hasn’t decided whether or not to give a final exam, it’s up in the air. And if you have a bad cold today, the possibility of going on a picnic this weekend is still up in the air. We’ve been using up in the air this way since the 1750s.

Definitions of up in the air
  1. adjective

    not yet determined

    “plans are still
    up in the air


    not certain to occur; not inevitable
  2. adjective

    very uncertain

    “left everything
    up in the air


    not established beyond doubt; still undecided or unknown

Word Family

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