Colonel Cathcart pledged eternal gratitude to Colonel Korn for the ingenious moves he devised and was furious with him afterward when he realized they might not work.
Almost on cue, a nursing mother padded past holding an infant in black rags, and Yossarian wanted to smash her too, because she reminded him of the barefoot boy in the thin shirt and thin, tattered trousers and of all the shivering, stupefying misery in a world that never yet had provided enough heat and food and justice for all but an ingenious and unscrupulous handful.
There are no more uses of "ingenious" in the book.
Show samples from other sources
It was an ingenious solution to the problem—as reliable as it was easy.
The first person to put wheels on a suitcase had an ingenious idea.