What you don't know won't hurt you Meaning in English
expression
Definition
This expression means that if someone doesn't know about a problem or truth, it won't worry or upset them. It suggests that ignorance can protect you from being hurt by something.
Usage & Nuances
Common in informal, conversational English. Can be used to justify not revealing information to someone for their own peace of mind. Sometimes seen as an excuse for secrecy. Compare with 'ignorance is bliss', but this expression emphasizes safety from emotional harm.
Example Sentences
What you don't know won't hurt you is something people say to avoid telling bad news.
basic
He didn't tell his friend the secret because he believes what you don't know won't hurt you.
basic
Some parents don't tell their kids everything because what you don't know won't hurt you.
basic
Honestly, I just let it go—what you don't know won't hurt you.
natural
"Should I tell him about the mistake?" "Nah, what you don't know won't hurt you."
natural
Sometimes it's better not to dig too deep—what you don't know won't hurt you.
natural