accident

noun
A2
1
A2
an unpleasant event, especially in a vehicle, that happens unexpectedly and causes injury or damage
تصادف, حادثه, سانحه
2
something that happens by chance and without an obvious cause
اتفاق, رخداد اتفاقی, اتفاق غیرمنتظره
Their early arrival was just an accident.
It is no accident that lawn tennis was invented in England.
an accident of birth/fate/history