In spite of all the cunning and ingenuity of the German steward, who would try to tempt him into purchases by making his original estimate always far larger than really required, and then representing to Vronsky that he might get the thing cheaper, and so make a profit, Vronsky did not give in.
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.