an undesirable or unfortunate happening that occurs unintentionally and usually results in harm, injury, damage, or loss; casualty; mishap: automobile accidents.
such a happening resulting in injury that is in no way the fault of the injured person for which compensation or indemnity is legally sought.
any event that happens unexpectedly, without a deliberate plan or cause.
chance; fortune; luck: I was there by accident.
a fortuitous circumstance, quality, or characteristic: an accident of birth.
any entity or event contingent upon the existence of something else.
a surface irregularity, usually on a small scale, the reason for which is not apparent.