You describe something as regrettable when you think that it is bad and that it should not happen or have happened. 不幸的
adjective [原级] 令人懊悔的,令人遗憾的
The loss of jobs is highly regrettable. 失去工作非常令人遗憾。
The loss of jobs is highly regrettable. 失去工作非常令人遗憾。