Words Like KNUCKLEHEAD
    
   We have put together a list of words that are similar to KNUCKLEHEAD.
    
    
    
        
            11 Alternative Words Similar to knucklehead
   
            
               
            
            
        
       
    
    
        3 definitions of knucklehead
           
        
    1
    
        a stupid person; these words are used to express a low opinion of someone's intelligence
    
    
    
 
    2
    
        Informal   A stupid person; a blockhead.
    
    
    
 
    3
    
        An idiot; a stupid or inept person