But for that ending a quite different anxiety arose, a new, incidental, but yet fatal and insoluble difficulty presented itself.
The criminal can only be made to speak by the sudden and apparently incidental communication of some new fact, of some circumstance of great importance in the case, of which he had no previous idea and could not have foreseen.
There are no more uses of "incidental" in the book.
Show samples from other sources
Promise me—incidental to the issue—Anglo-Saxon—dirty word—Childe Roland.
Harper Lee -- Go Set a Watchman
Many of the professors used the Socratic method—direct, repetitive, and adversarial questioning—which had the incidental effect of humiliating unprepared students.