/ Dictionary / Index A accidental death benefit: Meaning and Definition of Find definitions for: acciden'tal death' ben"efit Pronunciation: [key] a life insurance benefit, usually in the form of a rider or policy addition, under which the proceeds are payable to the beneficiary only if the insured dies by accident. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. accidental accidentalism Related Content Daily Word Quiz: blithesome Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language