There are none so deaf as those who will not hear.

Understand the thought

Meaning in plain English

Someone unwilling to consider a message can be harder to reach than someone who simply missed it. Notice whether the obstacle is missing information or a refusal to engage with it.

What the words are saying

The saying uses deafness figuratively for deliberate refusal to listen. Its point is that repeating information may not help when a person does not want to consider what it means. A constructive response may require asking about the objection, changing the setting or recognising that further repetition is unlikely to work. The image should not imply that actual hearing loss is a moral failing. It also does not prove that disagreement is wilful ignorance. A person may have misunderstood, need another explanation or have a sound reason to reject the message. The useful distinction is between access to information and willingness to examine it.

Everyday example

A group member repeatedly dismisses a documented booking conflict without reading the schedule, so the organiser asks them to review the specific dates before debating the plan again.

When to use it

Use it when repeated explanation is meeting a clear refusal to consider the information.

Agent-assisted editorial interpretation. This explains the words; it does not by itself verify their author or earliest origin.