What does the word accidental mean?

Usage examples for accidental

  1. The capital of the Lexovii was called the Neomagus or Noviomagus Lexoviorum; and no doubt ever was entertained but that the present city occupied the same site, till an accidental discovery, in the year 1770, proved the contrary to be the fact. – Account of a Tour in Normandy, Vol. II. (of 2) by Dawson Turner
  2. " It was partly accidental. – The Lost City by Joseph E. Badger, Jr.
  3. 300. " That may be apply'd to a Subject, with respect to something accidental." – The Grammar of English Grammars by Goold Brown