regret
🇺🇸
/rɪˈɡret/
🇬🇧
/rɪˈɡret/
to feel sorry about something you did or didn't do
I regret not studying harder for the test.
to politely say you are sorry or sad about something
I regret to inform you that your application was not successful.
a sad feeling about something that happened or something you did or didn't do
She felt deep regret for missing her friend's wedding.