Cambridge Dictionaries online Cambridge Dictionaries online

The most popular online dictionary and thesaurus for learners of English

English definition of “coincidence”

coincidence

noun [C/U]  /koʊˈɪn·sɪ·dəns, -səˌdens/ us  
an occasion when two or more things happen at the same time, esp. in a way that is unexpected or unlikely, or the unlikely fact of such things happening at the same time: [C] Was our meeting here a coincidence? [U] By coincidence, both teams happen to be coached by men.
coincidental
adjective [not gradable]  /koʊˌɪn·sɪˈden·təl/ us  
Resemblances between their stories are purely coincidental.
coincidentally
adverb [not gradable]  /koʊˌɪn·sɪˈden·təl·i/ us  
Mo shut his eyes and swung, the ball and the bat coincidentally arriving at the same place at the same time.
(Definition of coincidence from the Cambridge Academic Content Dictionary © Cambridge University Press)
What is the pronunciation of coincidence?
Browse related topics

You are looking at an entry to do with Chance and randomness, but you might be interested in these topics from the Chance and possibility topic area:

Add Cambridge dictionaries to your browser to your website

Definitions of “coincidence” in other dictionaries

Word of the Day

microbrewery

a small company that makes beer, usually using traditional methods, and often has a restaurant where its beer is served

Word of the Day

Blog

Read our blog about how the English language behaves.

Learn More

New Words

Find words and meanings that have just started to be used in English, and let us know what you think of them.

Learn More