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 markets are nervous, and experts have described the Houthis as highly unpredictable. — Arkansas Online, 10 Sep. 2026 Baked Goods Baked goods are tricky in the air fryer, and the nature of the heat makes the bake somewhat unpredictable. — Patricia Shannon, Southern Living, 9 Sep. 2026 Low-income people, instead, frequently face great challenges because of multiple jobs, unpredictable shift work and poor services. — Andrea Hetling, The Conversation, 9 Sep. 2026 Together, they are intended to reduce unpredictable delays as data moves between devices. — Neetika Walter, Interesting Engineering, 8 Sep. 2026 See All Example Sentences for unpredictable

Recent Examples of Synonyms for unpredictable

Adjective

Core personal consumption expenditures, which exclude the volatile costs of food and energy, have continued to rise.

— Sarah Moreno, Miami Herald, 11 Sep. 2026
Silver also tends to be more volatile than gold because of its significant industrial demand.

— Amy DeYoung, USA Today, 10 Sep. 2026

Definition of volatile

Adjective

Interior Secretary Jonvic Remulla, who accompanied the national police chief in serving the warrant to Romualdez, said he was admitted to a Manila hospital Monday afternoon due to unstable blood pressure and anxiety attack.

— ABC News, ABC News, 7 Sep. 2026
As Anna covers for Fyodor’s addiction and increasingly unstable professional behavior, her devotion starts to look poisonous for them both.

— Alison Foreman, IndieWire, 5 Sep. 2026

Definition of unstable

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