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
Until then, college sports will remain a thrilling yet unpredictable field — where legends are made, fortunes are chased, dreams are lost and the spirit of the Wild West lives on.
—
Jim Martin, Denver Post, 3 Aug. 2025
This jacket is lightweight and practical for unpredictable weather as the seasons shift.
—Nicol Natale, People.com, 2 Aug. 2025
Whether people call it climate change or not, the impact is real
Not everyone sees all this as a climate change issue; many just describe it as unpredictable weather.
—Natalie Eilbert, jsonline.com, 2 Aug. 2025
Though symptoms are unpredictable and most people have a different experience with it, common symptoms include numbness, weakness, trouble walking, vision changes and more, per Johns Hopkins.
—Ryan Brennan, Miami Herald, 1 Aug. 2025
See All Example Sentences for unpredictable
Jim Martin, Denver Post, 3 Aug. 2025
This jacket is lightweight and practical for unpredictable weather as the seasons shift.
—Nicol Natale, People.com, 2 Aug. 2025
Whether people call it climate change or not, the impact is real
Not everyone sees all this as a climate change issue; many just describe it as unpredictable weather.
—Natalie Eilbert, jsonline.com, 2 Aug. 2025
Though symptoms are unpredictable and most people have a different experience with it, common symptoms include numbness, weakness, trouble walking, vision changes and more, per Johns Hopkins.
—Ryan Brennan, Miami Herald, 1 Aug. 2025
See All Example Sentences for unpredictable
Recent Examples of Synonyms for unpredictable
Adjective
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The consequences would be far reaching and upend an already volatile political world.—
Michael Smolens,
San Diego Union-Tribune,
3 Aug. 2025
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The explosion was one of the country’s largest since the 2010 eruption of Mount Merapi, the country’s most volatile volcano.—
Rachel Wolf,
FOXNews.com,
2 Aug. 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 do this, the team used a robotic arm equipped with a force and torque sensor to measure air flow in hundreds of spots inside a short model duct to build up a map that shows the unstable danger points in a circular duct and safer ones where the air currents cancel one another out.—
David Szondy
August 02,
New Atlas,
2 Aug. 2025
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In particle physics, decay refers to the process where unstable subatomic particles transform into two or more lighter, more stable particles.—
William Barter,
Space.com,
1 Aug. 2025
Cite this Entry
“Unpredictable.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/unpredictable. Accessed 14 Aug. 2025.
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