Since we have been so unfortunate as to miss him and have no notion of his errand, this accidental souvenir becomes of importance.
Arthur Conan Doyle, The Hound of Baskervilles
MORE TO FOLLOW
Dictionary
Merriam-Webster
— occurring unexpectedly or by chance
More >
Macmillan
— happening without being planned or intended
More >
Usage
1 use of ‘accidental’ in The Hound of the Baskervilles, by Arthur Conan Doyle