What behavior is characterized as 'boorish'?

The term 'boorish' refers to behavior that is rude, insensitive, and lacks social grace. It is often associated with someone who is coarse or unrefined, behaving in a manner that is inconsiderate or offensive to others. This type of behavior stands in stark contrast to being polite or courteous, which are behaviors that show respect and consideration for others. Thoughtful and compassionate behavior, as well as reserved and shy tendencies, further exemplify qualities that do not align with boorishness, as they reflect a level of sensitivity and awareness toward social norms and feelings of others. Therefore, the correct choice accurately captures the essence of what is meant by 'boorish' behavior.