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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Recent Examples of unpredictable
Additionally, winds enhance combustion by supplying more oxygen, which can make the fire more unpredictable and challenging to control.
—
Virginia Iglesias, The Conversation, 13 Jan. 2025
And while Trump himself is unpredictable, many of the aides and policymakers set to occupy senior positions in his Administration are China hawks.
—Billy Perrigo, TIME, 13 Jan. 2025
The firestorms ravaging the country’s second-largest city are just the latest spasm of extreme weather that is growing more furious as well as more unpredictable.
—David Gelles, New York Times, 10 Jan. 2025
And that vegetation, combined with unusually strong Santa Ana wind speeds, means more unpredictable fires that can spread quickly and are difficult to put out.
—Peter Breen, Chicago Tribune, 10 Jan. 2025
See all Example Sentences for unpredictable 
Virginia Iglesias, The Conversation, 13 Jan. 2025
And while Trump himself is unpredictable, many of the aides and policymakers set to occupy senior positions in his Administration are China hawks.
—Billy Perrigo, TIME, 13 Jan. 2025
The firestorms ravaging the country’s second-largest city are just the latest spasm of extreme weather that is growing more furious as well as more unpredictable.
—David Gelles, New York Times, 10 Jan. 2025
And that vegetation, combined with unusually strong Santa Ana wind speeds, means more unpredictable fires that can spread quickly and are difficult to put out.
—Peter Breen, Chicago Tribune, 10 Jan. 2025
See all Example Sentences for unpredictable
Recent Examples of Synonyms for unpredictable
Adjective
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Other volatile organic compounds are also known to contaminate tap water after fires.—
Pien Huang,
NPR,
11 Jan. 2025
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Despite his volatile nature, Sanders has been linked to NFL teams after beginning his coaching career with Jackson State back in 2020.—
Vincent Frank,
Forbes,
11 Jan. 2025
Adjective
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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
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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
Adjective
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To address such an unstable yet technical landscape, businesses ‘curate’ teams of experts and ask them to work together.—
London Business School,
Forbes,
9 Jan. 2025
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An underground glow In fungi, the key step towards bioluminescence occurs when the enzyme luciferase converts light-emitting compound called luciferin into an unstable product.—
Laura Baisas,
Popular Science,
9 Jan. 2025
Thesaurus Entries Near unpredictable
Cite this Entry
“Unpredictable.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/unpredictable. Accessed 23 Jan. 2025.
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