Perspicuity

[…]whether through the first officer's want of perspicuity or my own stupidity, I was not a bit the wiser for the explanation.

“Well,” I answered, at first with uncertainty, then with inspiration, “he would do splendidly to lead your cotillon, if you think of having one.” ¶ “So you do not dance, Mr. Crocker?” ¶ I was somewhat set back by her perspicuity.

Thompson, a high school dropout, said with rare perspicuity that he doubted the FBI would hire him.

It must have been on some such day of harsh sunlight, the incisive February brightness that gives perspicuity without warmth.