unpredictable

adjective
un·​pre·​dict·​able | \ ˌən-pri-ˈdik-tə-bəl How to pronounce unpredictable (audio) \

Definition of unpredictable

: 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

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Other Words from unpredictable

unpredictably \ ˌən-​pri-​ˈdik-​tə-​blē How to pronounce unpredictably (audio) \ adverb
changes that occur unpredictably
unpredictability \ ˌən-​pri-​ˌdik-​tə-​ˈbi-​lə-​tē How to pronounce unpredictability (audio) \ noun
the unpredictability of the weather

Examples of unpredictable in a Sentence

Recent Examples on the Web

The result of Carter’s conviction, her lawyers say, is that now the law will be applied in an arbitrary and unpredictable fashion across the country, allowing prosecutors to decide when words become a crime rather than following clear guidelines. Ephrat Livni, Quartz, "The teen convicted in a controversial suicide texting case has appealed to the US Supreme Court," 14 July 2019 Director and writer Riley Stearns has crafted a layered and unpredictable story about a nondescript office drone named Casey (Eisenberg), who is seemingly randomly assaulted one night by a gang of motorcyclists. Alissa Wilkinson, Vox, "Jesse Eisenberg on the “aspirational and also absurd” manliness in his new movie," 12 July 2019 The semifinal double on Centre Court was over in the blink of an eye, an interesting contrast to what was such a wide-open and unpredictable tournament. Jon Wertheim, SI.com, "Serena Williams, Near the Peak of Her Powers, to Play Halep in Wimbledon Final," 11 July 2019 Auto sales slowed in the first half of 2019 compared with a year earlier and industry experts say the back half of the year could be bumpy and unpredictable. Jamie L. Lareau, Detroit Free Press, "Vehicle sales are down for Detroit Three, but prices are rising," 3 July 2019 After that, things took a wild and unpredictable turn via trades and head-scratching selections. Scott Gleeson, USA TODAY, "Biggest snubs and surprises of NBA draft: Wizards taking Hachimura at No. 9 a shocker," 21 June 2019 Home to animals including Arctic foxes, polar bears, gray wolves, caribou, snow geese, and musk oxen, the Arctic tundra is changing in broad and somewhat unpredictable ways as global average temperatures rise. Christina Nunez, National Geographic, "Tundra threats, explained," 19 June 2019 President Donald Trump’s aggressive and wildly unpredictable use of tariffs is spooking American business groups, which have long formed a potent force in his Republican Party. Paul Wiseman, Fortune, "Businesses Are Getting Spooked by Trump's Trade Policy," 12 June 2019 But for some, this dream is a stellar, adventurous, and unpredictable reality. Alex Aronson, Redbook, "Travel Influencers Share Their Favorite Things About #VanLife," 29 Mar. 2019

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'unpredictable.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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First Known Use of unpredictable

1840, in the meaning defined above

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Statistics for unpredictable

Last Updated

19 Jul 2019

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Time Traveler for unpredictable

The first known use of unpredictable was in 1840

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More Definitions for unpredictable

unpredictable

adjective

English Language Learners Definition of unpredictable

: not capable of being known before happening or being done
: not always behaving in a way that is expected

unpredictable

adjective
un·​pre·​dict·​able | \ ˌən-pri-ˈdik-tə-bəl\

Kids Definition of unpredictable

: impossible to predict The king was a completely unpredictable tyrant.— Brian Jacques, Redwall

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Comments on unpredictable

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