regretful
adjective /rɪˈɡretfl/
/rɪˈɡretfl/
- feeling or showing that you are sad or disappointed because of something that has happened or something that you have done or not done
synonym rueful后悔的;失望的;令人惋惜的;遗憾的 - a regretful look
失望的眼神
- a regretful look