chance event, n.
anything that happens suddenly or by chance without an apparent cause
<noun.event> freq. cnt.: 5 freq. cnt.: 5
accident chance event fortuity stroke
sample sentences
"winning the lottery was a happy accident""the pregnancy was a stroke of bad luck"
"it was due to an accident or fortuity"
lexical pointers
derivationally related form
semantic pointers
hypernym
hyponym