1. showing no regret or guilt for wrongdoing
2. continuing without stopping or slowing down; relentless

Examples

• The remorseless killer showed no emotion during the trial.
• She was remorseless about her decision to fire the incompetent employee.
• The remorseless heat of the desert made travel nearly impossible.
• His remorseless pursuit of success cost him his family relationships.
• The storm continued its remorseless assault on the coastline.
• The dictator’s remorseless oppression of his people lasted for decades.