Another of her principles was that parents should never (at least visibly) interfere with the plans of their married children; and the difficulty of adjusting this respect for May’s independence with the exigency of Mr. Welland’s claims could be overcome only by the exercise of an ingenuity which left not a second of Mrs. Welland’s own time unprovided for.
There are no more uses of "ingenuity" in the book.
Show samples from other sources
He exercised great ingenuity in making excuses for missing class.
It will take more than ingenuity to clean this up. We’re going to have to admit our mistake.