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
Georgia’s unpredictable primaries will come to a close Tuesday after a campaign season that unfolded in two very different worlds.
—
Greg Bluestein, AJC.com, 19 May 2026
The war in Iran is entering an unpredictable new phase where the risk to energy markets is growing and analysts’ crystal balls are getting murkier.
—Tim McDonnell, semafor.com, 19 May 2026
The idea is being studied by scientists, who warn that impacts may be unpredictable, including changes in rain patterns, draughts and unforeseen weather changes.
—Tereza Pultarova, Space.com, 18 May 2026
The job of a risk manager was to turn the unpredictable into something a board could approve.
—Aditya Vikram Kashyap, Forbes.com, 18 May 2026
See All Example Sentences for unpredictable
Greg Bluestein, AJC.com, 19 May 2026
The war in Iran is entering an unpredictable new phase where the risk to energy markets is growing and analysts’ crystal balls are getting murkier.
—Tim McDonnell, semafor.com, 19 May 2026
The idea is being studied by scientists, who warn that impacts may be unpredictable, including changes in rain patterns, draughts and unforeseen weather changes.
—Tereza Pultarova, Space.com, 18 May 2026
The job of a risk manager was to turn the unpredictable into something a board could approve.
—Aditya Vikram Kashyap, Forbes.com, 18 May 2026
See All Example Sentences for unpredictable
Recent Examples of Synonyms for unpredictable
Adjective
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Everything is imperfect and volatile.—
Ben Croll,
Variety,
17 May 2026
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Gas and oil prices have been rising but volatile since the conflict began.—
Molly Parks,
The Washington Examiner,
17 May 2026
Adjective
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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
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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
Adjective
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Why Sorting Laundry Was Traditionally Important Before advances in fabric manufacturing, many dyes were unstable.—
Mary Marlowe Leverette,
Southern Living,
15 May 2026
-
While highly energetic, these ions are unstable.—
Mrigakshi Dixit,
Interesting Engineering,
15 May 2026
Cite this Entry
“Unpredictable.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/unpredictable. Accessed 21 May. 2026.
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