unpredictable

adjective

un·​pre·​dict·​able ˌən-pri-ˈdik-tə-bəl How to pronounce unpredictable (audio)
: not predictable: such as
a
: not able to be known or declared in advance
unpredictable weather
b
: tending to behave in ways that cannot be predicted
an unpredictable boss
unpredictably adverb
changes that occur unpredictably
unpredictability noun
the unpredictability of the weather

Examples of unpredictable in a Sentence

unpredictable spring weather that makes it really hard to know what to wear
Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
Sometimes, as today’s business leaders are well aware, the future is unpredictable, and its demands are unprecedented. Anar Mammadov, Forbes, 17 Mar. 2025 March Madness will always be unpredictable—but that doesn't mean your bracket has to be. Kilty Cleary, Newsweek, 17 Mar. 2025 Listen to this article The thrill of an upset has always been at the heart of the NCAA Tournament’s universal popularity, but women’s basketball looks primed for its most unpredictable March Madness in years after widespread parity in the sport this season. Emily Adams, Hartford Courant, 16 Mar. 2025 While most of these elements can be experienced while walking through the home or seen on paper, neighbors can be unpredictable. Halee Miller Van Ryswyk, Better Homes & Gardens, 16 Mar. 2025 See All Example Sentences for unpredictable

Word History

First Known Use

1840, in the meaning defined above

Time Traveler
The first known use of unpredictable was in 1840

Browse Nearby Words

Cite this Entry

“Unpredictable.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/unpredictable. Accessed 26 Mar. 2025.

Kids Definition

unpredictable

adjective
un·​pre·​dict·​able
ˌən-pri-ˈdik-tə-bəl
: not predictable
unpredictability
-ˌdik-tə-ˈbil-ət-ē
noun
unpredictably
-ˈdik-tə-blē
adverb

More from Merriam-Webster on unpredictable

Last Updated: - Updated example sentences
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