Feeling sorry
apologetic adjective
showing that you are sorry for doing something wrong or for causing a problem
guilty adjective
ashamed and sorry because you have done something wrong
contrite (adv. contritely) adjective
very sorry or ashamed because you have done something bad
regretful adjective
sad, or sorry
repentant adjective
ashamed and sorry because you recognize that you have done something wrong
remorseful adjective
feeling sad or guilty for having done something wrong
penitent adjective
sorry for something bad that you have done and willing to change your behavior
rueful adjective
showing that you are sorry about something
someone will live to regret something phrase
used for saying that someone will wish in the future that they had not done something