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.
Aside from the ingenious creation of Moretti and his occasionally unpredictable behavior, the film fails at creating interesting characters, deploying suspense, and even delivering some cheap thrills. Bilge Ebiri, Vulture, 28 Jan. 2025 And is the finale as unpredictable as the footage leads us to believe? Jessica Radloff, Glamour, 27 Jan. 2025 Jenkins, meanwhile, has helped usher in a complete rethink of Memphis’ offense, one that has made the Grizzlies both unpredictable and effective and led what has historically been a defensive-first squad to a top-five rating on offense. John Hollinger, The Athletic, 24 Jan. 2025 Emergencies are unpredictable and rapidly changing events that require the coordinated efforts of professional responders with victims on the ground. Alison Coleman, Forbes, 23 Jan. 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

Dictionary Entries Near unpredictable

Cite this Entry

“Unpredictable.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/unpredictable. Accessed 31 Jan. 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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