CEFR B2
regrettable
adjective
Meaning
Deserving regret; causing a feeling of sadness, disappointment, or sorrow because something bad has happened or been done.
Examples
- The cancellation of the concert was regrettable for all the fans who had bought tickets.
- It was a regrettable oversight that led to the error in the report.
Synonyms: unfortunate, deplorable, lamentable, unhappy