What is accidental death benefit?

Accidental Death Benefit (ADB) Accidental death benefit policies provide a payout if a death was caused by an accident. There are restrictions on both timing of the accident and death, as well as what is considered an accident.

https://fidelitylife.com/life-insurance-basics/life-insurance-101/accidental-death-benefit-insurance/#:~:text=Benefit%20(ADB)%20Insurance-,Accidental%20Death%20Benefit%20(ADB),what%20is%20considered%20an%20accident.