👉 In the context of a person's behavior, "muttonheadedness" refers to a lack of understanding or appreciation for something that one does not understand. It is often associated with a sense of arrogance or pretentiousness, and can be seen as a sign of a lack of empathy or consideration for others. For example, if someone is muttonheaded when it comes to their job, they may take pride in their accomplishments but not in the work that others do. They may also seem unm