1 what someone doesn\'t know can\'t/won\'t hurt him/her | Definition of what someone doesn\'t know can\'t/won\'t hurt him/her

what someone doesn't know can't/won't hurt him/her

idiom

Definition of what someone doesn't know can't/won't hurt him/her

—used to say that if someone does not know about something, he or she cannot be damaged by it, blamed for it, etc.