Perspicacious — nice compliment

This morning, I received this comment from one of the authors I have been working with (or should I say . . . with whom I have been working . . . ha!).

“Thank you for your prompt, perspicacious and very helpful work on my [nonfiction] manuscript. I think it’s much better now.”

I don’t recall being described as “perspicacious” before — although I have been labeled as “astute” — but I take it as high praise. I know, in a general sense, what the word means, but I looked it up anyway to distin...