Remorse – Someone's deep regret for a wrong they have done
He revisited the moors (remorse) and regretted the wrong he had done when he dumped all that rubbish.
Examples of remorse in a sentence
The psychopath appeared content and showed no remorse during the murder trial.
My stockbroker told me that if I do not buy the stock now I will feel buyer’s remorse when the value doubles.
Bill felt remorse when he crashed his friend's car.