The word "expiative" is an adjective used to describe something that is intended to atone for or make up for a wrongdoing. Some synonyms for this word include reparatory, redemptive, amends-making, and penitential. Other synonyms include remorseful, regretful, and contrite, which are all related to the feeling of guilt that drives someone to seek expiation for their actions. Additionally, the words propitiatory, conciliatory, and peacemaking can be used as synonyms for "expiative," emphasizing the intention to resolve conflict or restore balance to a situation. Overall, the synonyms for "expiative" all convey a sense of taking responsibility for one's actions and seeking to make things right.