a feeling of sadness about something sad or wrong or about a mistake that you have made, and a wish that it could have been different and better
I left school at 16, but I've had a great life and I have no regrets.
The manager expressed deep regret at/for the number of staff reductions.
We think, much to our regret (= and we are very sorry about this), that we will not be able to visit you next year.
Despite the missed opportunity, he harbored no regret for pursuing his passion.
Expressing regret for the error, the CEO vowed to implement corrective measures.
It's natural to feel a sense of regret when reflecting on decisions made in haste.
The letter of regret conveyed sincere apologies for any inconvenience caused.
