Meaning of “coincidence” - Learner’s Dictionary


noun [ C, U ] uk us /kəʊˈɪnsɪdəns/

B2 a situation in which two very similar things happen at the same time but there is no reason for it:

an amazing/strange coincidence
It was pure coincidence that we both married dentists.
coincidental uk us /kəʊˌɪnsɪˈdentəl/ adjective

happening by coincidence:

The similarities are coincidental.
coincidentally uk us /kəʊˌɪnsɪˈdentəli/ adverb

(Definition of “coincidence” from the Cambridge Learner’s Dictionary © Cambridge University Press)