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

Whether or not both eateries will reopen at a later date remains up in the air. — Brock Keeling, Oc Register, 27 July 2026

While it was not fully confirmed that Corlys died, he was attacked and choked by a soldier and collapsed to the ground before the episode cut to black, leaving his fate up in the air. — Julia Moore, PEOPLE, 27 July 2026

The timeline for the remainder of the project is still up in the air, as debates over how to pay for the construction are ongoing. — Ruth Abramovitz, Sun Sentinel, 25 July 2026

Showrunners Joe Port and Joe Wiseman were very generous to the crowd inside Ballroom 20 at Comic-Con on Friday, teasing what to expect after leaving Pete’s (Richie Moriarty) fate up in the air at the end of Season 5. — Katie Campione, Deadline, 24 July 2026