ingenuity

noun

The ability to solve difficult problems, often in original, clever, and inventive ways. / (now rare) Ingenuousness; honesty, straightforwardness

His ingenuity allowed him to come up with a creative solution to the problem.

意味（1）

The ability to solve difficult problems, often in original, clever, and inventive ways.

The pyramids demonstrate the ingenuity of the ancient Egyptians.

意味（2）

(now rare) Ingenuousness; honesty, straightforwardness

And therefore I apply my selfe to ingenuitie, and ever to speake truth and what I think[…].