The word "clodhead" is often used as an insult to describe someone who is foolish or dense. However, there are other synonyms that can be used to convey a similar meaning. One such synonym is "blockhead", which implies a lack of intelligence or common sense. Another similar word is "dolt", which is often used to describe someone who is slow-witted. "Lout" is another synonym that can refer to someone who is clumsy or boorish. Additionally, "simpleton" can be used to describe someone who is naive or unsophisticated. While these words may not be considered kind or flattering, they can be used in a variety of situations to describe someone's behavior or personality.