
Coincidental
Chance Encounter
Refers to an unexpected meeting between people that was not planned.

Running into my high school teacher at the airport was completely coincidental.
Mistaken Causation
Two events may occur simultaneously without one causing the other.

Her success and my resignation were purely coincidental and unrelated.
Surprising Parallel
Used when two things happen together in a way that seems surprising or noteworthy.

It was quite coincidental that we both wore the same dress on the same day.
Compare with
AccidentalChanceExpectFortuitousIncidentalSerendipitousUnforeseeableUnintended
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