1
general::
Phrase(s): none the wiser
not knowing any more in spite of events or exposure to facts. • I was none the wiser about black holes after the lecture. It was a complete waste of time. • Anne tried to explain the situation tactfully to Bob, but in the end, he was none the wiser.
McGrawhill's American Idioms And Phrasal Verbs
2
general::
Knowing no more than before, as in He tried to explain the tax structure, but in the end I was none the wiser. [Early 1800s]
American Heritage Idioms