Tragedy (noun)

A serious event or situation that has a great sorrow, disappointment or a disastrous outcome.

Origin:

From the greek word "tragōidia" meaning a form of dramatic composition, it refers to a serious event or situation that has a great sorrow, disappointment or a disastrous outcome.

Examples:

1. The fire was a tragedy, destroying many homes and lives.
2. The loss of the child was a tragedy for the family.
3. The accident was a tragedy that could have been avoided.
4. The play is a tragedy about the downfall of a king.
5. The war was a tragedy for all the countries involved.