usage: sadness associated with some wrong done or some disappointment; "he drank to drown his sorrows"; "he wrote a note expressing his regret"; "to his rue, the error cost him the game"
Verb
1. repent, regret, rue, feel, experience
usage: feel remorse for; feel sorry for; be contrite about
2. regret, miss
usage: feel sad about the loss or absence of
3. regret, refuse, decline
usage: decline formally or politely; "I regret I can't come to the party"
4. regret, inform
usage: express with regret; "I regret to say that you did not gain admission to Harvard"