The term 'hardly a gentleman' is often used to describe someone who is not well-mannered or polite. This can be seen in the crossword solutions for the term, which include 'BOOR, ' 'CAD, ' 'LOUT, ' and 'MEANIE.' A 'BOOR' is someone who is rude and insensitive, while a 'CAD' is someone who behaves in a dishonorable or unscrupulous manner. A 'LOUT' is someone who is boorish and ill-mannered, and a 'MEANIE' is someone who is unkind and cruel. All of these words are used to describe someone who is not a gentleman, and thus does not possess the qualities of politeness and good manners.