She lamented the loss of her favorite book.

He lamented the loss of his beloved pet.

Lament is the abbreviation of Lamentations.

The lamenters gathered to mourn the loss of their loved ones.

She is a renowned lamenter at funerals.

She looked at the old photograph with a lamentful expression.

The lamentings of the mourners filled the air.

The lamentability of the situation was evident to everyone.

The lamentableness of the situation was evident to everyone.

She expressed her lamentational feelings through her poetry.