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Synonyms

by coincidence

Idioms  
  1. Through an accidental simultaneous occurrence, as in By coincidence both researchers discovered the same solution. [Mid-1600s] Also see by chance.


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.

Not by coincidence, Evy discovers that she is herself pregnant, though she hasn’t told her boyfriend, with whom she was living before moving into her mother’s house for the latter’s final days.

From The Wall Street Journal • Mar. 12, 2026

Traditionally, they vote once in every parliament on a republican motion to abolish the monarchy and the motion came up by coincidence on Tuesday.

From BBC • Feb. 3, 2026

Another possibility is that some early dinosaurs happened to have feet that closely resembled bird feet by coincidence.

From Science Daily • Feb. 1, 2026

Days before I sat down for my conversation with John Lithgow, and purely by coincidence, I watched “The Adventures of Buckaroo Banzai Across the 8th Dimension” for the first time in decades.

From Salon • Sep. 25, 2024

Completely by coincidence, as we moved back and forth between these churches, I noticed that each one had its own distinct racial makeup: Jubilant church was mixed church.

From "Born a Crime: Stories from a South African Childhood" by Trevor Noah

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