UNPREDICTABLE Synonyms: 75 Similar and Opposite Words

unpredictable

adjective

ˌən-pri-ˈdik-tə-bəl

Definition of unpredictable

as in volatile

likely to change frequently, suddenly, or unexpectedly unpredictable spring weather that makes it really hard to know what to wear

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Example Sentences

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Recent Examples of unpredictable But persistent geopolitical uncertainty and volatility make that process more unpredictable. — Priyanka Salve, CNBC, 9 July 2026 Despite the consistent encroachment of technology into the sporting field, greater personalization, and more powerful prediction tools, the unpredictable nature of sports is what keeps fans engaged. — Sam Birchall, Fortune, 9 July 2026 Companies are forced to price an asset whose ultimate operational value remains unpredictable. — Ascend Agency, Chicago Tribune, 9 July 2026 To say gas prices have been unpredictable this year would be an understatement. — Joe Hernandez, NPR, 9 July 2026 See All Example Sentences for unpredictable

Recent Examples of Synonyms for unpredictable

Adjective

Gen Z has experienced inflation, volatile markets and economic uncertainty before many even began their careers.

— Brent Gleeson, Forbes.com, 10 July 2026
Advertisement Even after the war ends, experts expect military spending to rise, driven by an increasingly volatile geopolitical landscape.

— Sarah Yerkes, Time, 10 July 2026

Definition of volatile

Adjective

Rigorous, blustery winter; winding sleety spring; hot, moist enervating summer; changeful autumn with its dog-days; these are absolutely unknown.

— San Diego Union-Tribune, San Diego Union-Tribune, 1 Jan. 2023
Hers is the kind of face that inspires directors to tight framing — gleaming, as if smoothed from marble, and yet somehow pliant, changeful.

— Jordan Kisner Jack Davison, New York Times, 11 Oct. 2022

Definition of changeful

Adjective

Relying on hand tools instead of heavy machinery, firefighters tunneled through unstable debris to rescue a security guard trapped for eight days.

— Mery Mogollón, Los Angeles Times, 5 July 2026
In an unstable industry with IP, nepotism and maybe even now artificial intelligence ruling supreme, Ridd and Boa have doubled down on emerging filmmakers with original stories.

— Lily Ford, HollywoodReporter, 2 July 2026