be none the wiser

be none the wiser

1. To not be aware of something (typically because others have kept it a secret). I came in after curfew last night, but it's OK because I was so quiet that my parents are none the wiser.
2. To not understand something, even after receiving explanations and information about it. My tutor has explained the quadratic equation to me many times, but I'm still none the wiser.
See also: none, wiser

be none the wiser

also not be (any) the wiser
1. to fail to understand something Isabel must have explained her idea three times to me, but I'm afraid I'm none the wiser. If you take the label off the jar and say you made it yourself, your guests won't be any the wiser.
2. to not be aware of something The health department gave the restaurant a health warning, but customers were none the wiser.
Usage notes: often said about efforts to be sure that no one is aware: I figured I could just get rid of the stuff, and you'd be none the wiser.
See also: none, wiser

be none the wiser

to still be confused about something, even after it has been explained to you Isobel must have explained the theory three times to me but I'm afraid I'm still none the wiser.
See also: none, wiser
References in periodicals archive ?
If she said no, he wasn't going to tell her where the ring was, so when he comes out of prison the ring is still there for him to collect and she would be none the wiser.
An average fan in the street may be none the wiser by what is revealed.
If it turned out that these were entirely made up bands and it was all an elaborate joke being played on me by the music industry, I would honestly be none the wiser.
Now I have to wait what will inevitably be a few weeks while the matter is resolved (which my bank tells me it will be, once they have sent me the necessary forms, etc), but had I not bothered to check, or kept the slips, I would be none the wiser and BD200 worse off
If she had sore legs, aching feet or a bilious stomach, we'd be none the wiser.
The Hughleys" (UPN): Entire episode demeans companion animals, most notably when Hughley buys a "replacement" dog for his neighbor after the dog dies while in his care -- insensitively thinking the neighbor would be none the wiser.