be none the wiser/no 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.
be none (or not any) the wiserknow no more than before.
be none the ˈwiser/ˈno wiser,
not be any the ˈwiser
1 not understand something, even after it has been explained to you: I’ve read the instructions, but I’m still none the wiser.
2 not know or find out about something bad that somebody has done: If you put the money back, no one will be any the wiser.