Unpitiful is a word that describes someone or something that is lacking in compassion or mercy. There are several synonyms for unpitiful, including heartless, remorseless, unsympathetic, uncompassionate, callous, and unfeeling. These words all describe a lack of empathy or concern for others, and can be used to describe people, actions, or situations. Whether someone is being unpitiful towards another person, or a situation is unpitiful for those involved, these synonyms can be used to convey a sense of coldness or indifference. It is important to recognize when one is being unpitiful and strive to show compassion and empathy towards others.