unprovoked
Britishadjective
Explanation
Something that's unprovoked is done for no good reason, with no real cause. A slap across your face is unprovoked if you did nothing to make the slapper mad at you. President Franklin D. Roosevelt famously described the 1941 attack on Pearl Harbor by the Japanese, which brought the US into World War II, as "unprovoked and dastardly." A military action that isn't reacting against a previous attack is unprovoked, and a furious outburst from your friend is also unprovoked if you gave him no reason to be angry. Unprovoked comes from the verb provoke, to deliberately incite anger or annoyance in someone. The Latin root is provocare, "call forth or challenge."
Vocabulary lists containing unprovoked
Hoot
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Dear Martin
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Purple Hibiscus
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Example Sentences
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
The FPA called on the police to "immediately take action against the officers involved in this unprovoked assault and to act in the future to safeguard press freedoms, rather than trample upon them."
From Barron's • Mar. 18, 2026
Three others were injured as Pakistani forces responded to the "unprovoked fire", Information Minister Attaullah Tarar said.
From BBC • Feb. 26, 2026
The United States once again had the highest number of reported incidents, accounting for 38% of global unprovoked bites when assessed on a country by country basis.
From Los Angeles Times • Feb. 19, 2026
I think they’re waiting for something that they can pitch plausibly as a completely unprovoked act of violence, or interference by a local or state law enforcement officer.
From Slate • Jan. 16, 2026
“Penalty shot to Gryffindor for an unprovoked attack on their Chaser! Penalty shot to Slytherin for deliberate damage to their Chaser!”
From "Harry Potter And The Prisoner Of Azkaban" by J.K. Rowling
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Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.