feel sad or sorry about something
lament - regret
The word ‘lament’ is used as an expression of loss or regret. It can be demonstrative, as in crying or acting in a way that makes your sorrow or disappointment clear to others, or internalized. It is important to note that you can lament the loss of something other than a person, such as the passing of a particular way of life.
There are many among the older generations who lament the decline of close local communities as more and more people travel to the cities for work.
The whole situation is lamentable. I wish it had never had to come to this.
There were scenes of lamentation all over the country after the President was assassinated.