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Definition of coincidental

coincidental

/koʊˌɪn.sɪˈdɛn.təl/
co · in · ci · den · tal

Adverb:coincidentally
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coincidental Lexical Profile

coincidental Game Scores & Validity

• adjective

1

Resulting from a coincidence; occurring or existing together purely by chance rather than by design, plan, or causal connection.

Example

"Any resemblance between the characters in the novel and real people is purely coincidental."


2

Happening or existing at the same time; concurrent or simultaneous.

Example

"The sudden drop in atmospheric pressure was coincidental with the arrival of the coastal storm front."

Synonyms
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Antonyms
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Word Nuance & Usage

'Coincidental' most commonly refers to events happening together purely by chance, whereas 'coincident' is preferred in technical, mathematical, or formal contexts to describe things that occupy the exact same space or occur at the exact same time without implying randomness.

• Rhymes for coincidental

Word Origin & Etymology

Formed in the 17th century from 'coincidence' or 'coincident' plus the suffix '-al', ultimately tracing back to Medieval Latin 'coincidere' ('to fall upon together'), from 'co-' ('together') and Latin 'incidere' ('to fall upon or happen').

Cite this Entry


Wordmom. (2026). Definition of Coincidental. In Wordmom Dictionary. Retrieved Nov 5, 2026, from https://wordmom.com/dictionary/coincidental
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