unpredictable
adjective
un·pre·dict·able
ˌən-pri-ˈdik-tə-bəl 
: 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
Examples of unpredictable in a Sentence
unpredictable spring weather that makes it really hard to know what to wear
Recent Examples on the Web
Engineers use these environments to validate systems under unpredictable conditions, including lighting changes, sound vibrations, and uneven surfaces.
—
Aamir Khollam, Interesting Engineering, 27 Dec. 2025
The apple peel diagnosis only deepened her awareness of how unpredictable allergies can be.
—Ashley Vega, PEOPLE, 26 Dec. 2025
The meta action-comedy didn’t light up early 2022’s unpredictable box office, but it was very well received among audiences and industry folks.
—Brian Davids, HollywoodReporter, 25 Dec. 2025
Many others just have unpredictable schedules and want flexibility to volunteer here and there.
—Alexander Coolidge, Cincinnati Enquirer, 24 Dec. 2025
See All Example Sentences for unpredictable
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.
Aamir Khollam, Interesting Engineering, 27 Dec. 2025
The apple peel diagnosis only deepened her awareness of how unpredictable allergies can be.
—Ashley Vega, PEOPLE, 26 Dec. 2025
The meta action-comedy didn’t light up early 2022’s unpredictable box office, but it was very well received among audiences and industry folks.
—Brian Davids, HollywoodReporter, 25 Dec. 2025
Many others just have unpredictable schedules and want flexibility to volunteer here and there.
—Alexander Coolidge, Cincinnati Enquirer, 24 Dec. 2025
See All Example Sentences for unpredictable
Cite this Entry
“Unpredictable.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/unpredictable. Accessed 1 Jan. 2026.
Copy CitationLove words? Need even more definitions?
Merriam-Webster unabridged
Share