The term 'less civil' can be described by the crossword solutions of 'RUDER, ' 'NASTIER, ' and 'MEANER.' These words all refer to a lack of civility, or politeness, in a person's behavior. RUDER implies a lack of respect for others, while NASTIER implies a more malicious intent. MEANER implies a more aggressive attitude, often with the intention of causing harm. All three words indicate a lack of civility and politeness in a person's behavior.