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
These examples are automatically compiled from online sources to illustrate current usage. Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback about these examples.
But Bird belongs to Bailey, and to first-timer Adams, who does a winning job of being unpredictable herself, even if the film would be better off delving deeper into one of the relationships in her life rather than dipping into all of them in turn. Alison Willmore, Vulture, 8 Nov. 2024 The post-election dynamic is reminiscent of a famous gathering of tech titans at Trump Tower in December 2016, a month after Trump’s first upset win in a presidential race, when some of the same executives braced themselves for unpredictable policy shifts. David Ingram, NBC News, 6 Nov. 2024 Combined with worries over increasing predator numbers and unpredictable winters, these circumstances had led managers to cut moose tags by more than 50 percent, the study’s authors explain. Katie Hill, Outdoor Life, 6 Nov. 2024 The others may swing toward one candidate, but out of the seven, just Georgia and Michigan remain highly unpredictable. The Hill, 5 Nov. 2024 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 16 Nov. 2024.

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
Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!