not predictable; not to be foreseen or foretold: an unpredictable occurrence.
something that is unpredictable: the unpredictables of life.
- un·pre·dict·a·bil·i·ty, un·pre·dict·a·ble·ness, noun
- un·pre·dict·a·bly, adverb
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
How to use unpredictable in a sentence
Cars are driven to the extreme limits of their capabilities and track conditions are often unpredictable.
Advertiser frustrations over an unpredictable and glitchy ads platform could drive them to consider channel diversification more seriously.Social Shorts: Snapchat advertiser certifications, YouTube masthead ads go full CPM, more | Ginny Marvin | November 9, 2020 | Search Engine Land
In 2020, experts see a combination of the problems that have long plagued US voting, along with the unpredictable realities of this strange year of voting in a pandemic.9 questions about 2020’s record-breaking early vote, answered | Rani Molla | October 30, 2020 | Vox
This is because of the random, unpredictable way that meteorites fall to Earth.Pristine 'fireball’ meteorite contains extraterrestrial organic compounds | Rachael Zisk | October 29, 2020 | Popular-Science
Human biology can react in unpredictable ways to new adversaries.We don’t know enough about COVID antibodies to count on them | Sy Mukherjee | October 28, 2020 | Fortune
The city is too highly regulated and controlled, he insists; creative people need some unpredictability.The End of New York: How One Blog Tracks the Disappearance of a Vibrant City | Tim Teeman | August 6, 2014 | THE DAILY BEAST
I loved the sound of the music, its excitement and unpredictability.Jazz (The Music of Coffee and Donuts) Has Respect, But It Needs Love | Ted Gioia | June 15, 2014 | THE DAILY BEAST
The calling card of a late-night talk show is supposed to be unpredictability and danger.In Honor of David Letterman’s Pending Retirement, Watch His Wildest Interviews (VIDEO) | Kevin Fallon | April 3, 2014 | THE DAILY BEAST
Meanwhile, vulnerability, risk, unpredictability, and sudden transformation are the constitutive experiences of human life.Can Heritage Foundation Posterboy Bono Save the GOP? | James Poulos | March 15, 2014 | THE DAILY BEAST
"The word that we're hearing a lot in our research is predictability vs. unpredictability," Silver explained.Why Respected Screen Veterans Are Following Liam Neeson’s Footsteps | Andrew Romano | February 28, 2014 | THE DAILY BEAST
One of the most disquieting aspects of the advance was its variability and unpredictability.Greener Than You Think | Ward Moore
The results were instability, unpredictability, uncertainty and fear.After the Rain | Sam Vaknin
British Dictionary definitions for unpredictable
not capable of being predicted; changeable
- unpredictability or unpredictableness, noun
- unpredictably, adverb
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012