Definitions

1. noun

a feeling of sadness, remorse, or disappointment because of something that has happened or been done

“She couldn’t shake off the regret of quitting her job without a plan.”

2. verb

to feel sad or sorry about something that has happened or been done

“He regretted his decision to invest in the failing company.”

3. noun

a past action or decision that is now regretted

“The buyer’s regret of the expensive purchase was evident on their face.”