Synonyms of up in the air

up in the air

phrase

as in volatile

likely to change frequently, suddenly, or unexpectedly

Our plans are still up in the air, but we're hoping to leave on Sunday.

Synonyms & Similar Words

• volatile
• variable
• unpredictable
• unstable
• inconsistent
• changeful
• unsettled
• uncertain
• fickle
• capricious
• unsteady
• fluid
• mutable
• inconstant
• mercurial
• random
• temperamental
• changeable
• arbitrary
• erratic
• skittish
• flickery
• fluctuating
• ambivalent
• aimless
• shaky
• desultory
• haphazard
• stray
• slapdash
• hit-or-miss
• mobile
• irregular
• unreliable
• dicey
• adaptable
• vacillating
• versatile
• scattered
• protean
• untrustworthy
• hesitating
• undependable
• wavering
• shilly-shally
• shilly-shallying

Antonyms & Near Antonyms

• certain
• constant
• even
• settled
• stable
• steady
• immutable
• predictable
• uniform
• stationary
• unchanging
• sure
• invariable
• tried
• unchangeable
• true
• unvarying
• permanent
• persistent
• changeless
• durable
• abiding
• lasting
• reliable
• equable
• trustworthy
• dependable
• trusty
• tried-and-true

Example Sentences

Recent Examples of up in the air

Meanwhile, Annie’s romances with Rory (Daniel Quinn-Toye) and Ellis (Jacob Whiteduck-Lavoie) are left up in the air. — Kelly Allen, PEOPLE, 13 Aug. 2026

Since two games for each team will remain up in the air until the group stage of the in-season tournament plays out, only 80 of the 82 regular-season games for each team will be announced on Thursday. — Anthony Chiang, Miami Herald, 12 Aug. 2026

Federal Reserve interest rate policy may be up in the air, but some banks are fattening up the yields offered on certificates of deposit, sending them above 4%. — Darla Mercado, Cfp®, CNBC, 12 Aug. 2026

Some details were still up in the air, though, after Wednesday’s meeting, including where to have a parade and which roads to close. — Idaho Statesman, 7 Aug. 2026