chance event

Noun chance event has 1 sense

• chance event(n = noun.event) accident, fortuity, stroke - anything that happens suddenly or by chance without an apparent cause; "winning the lottery was a happy accident"; "the pregnancy was a stroke of bad luck"; "it was due to an accident or fortuity"
is a kind of happening, natural event, occurrence, occurrent
has particulars: hap, break, good luck, happy chance, coincidence, happenstance, lottery