be none the wiser(redirected from were 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.