none the wiser
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]
Words nearby none the wiser
nondurable,
none,
none of one's business,
none of the above,
none other than,
none the wiser,
none the worse for,
none too,
none-so-pretty,
noneconomic,
noneffective