coincidental
Americanadjective
-
happening by or resulting from coincidence; by chance.
a coincidental meeting.
-
existing or occurring at the same time.
adjective
Other Word Forms
Etymology
Origin of coincidental
First recorded in 1790–1800; coincident + -al 1
Explanation
Things that are coincidental take place at the same time, but there isn't any connection. It's just chance — a coincidence. Sometimes things seem connected because they happen at the same time, but they really aren't: they're just coincidental. A sports fan might have a lucky shirt he wears to bring his team luck. But, if his team wins, that's just coincidental. Shirts, unfortunately, don't influence game outcomes. Coincidental is the opposite of causal, which means one thing directly causing another to happen. When coincidental things happen — like a friend calls just when you were thinking of her — it's just luck or chance.
Vocabulary lists containing coincidental
Catching Fire
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Through My Eyes
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Every Soul a Star
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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.
This strategy of testing the law and institutions, then losing, and then revising and trying again until the barrier is broken or sufficiently bent to exploit, is not coincidental.
From Salon ● Jul. 9, 2026
The timing of Apple’s price hikes may have been coincidental, but they illustrate the new world order in technology right now.
From MarketWatch ● Jun. 25, 2026
There’s nothing coincidental in the fact that military schools also rose up around then, and that they kept multiplying past the first world war and up to the second one.
From Los Angeles Times ● May 22, 2026
Whether the departure was an explicit condition of a potential swap or a signal of strategic alignment, the sequence wasn’t coincidental.
From The Wall Street Journal ● May 14, 2026
He might not have been paying attention to me at all, and his glance might have just been coincidental.
From "Warcross" by Marie Lu
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Get a wordDefinitions 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.
