perspicacity
n. 洞察力；聪颖；睿智
例句
I congratulated her on her perspicacity.
我就她的洞察力向其表示祝贺。
《柯林斯英汉双解大词典》
Such a person is said to have great "perspicacity," or perception.
这样的人据说是伟大的“敏锐”或看法。
It was a marvellous effort of perspicacity to discover that I did not love her.
真是费了不少的劲才发现我本来就不爱她。
