1. the quality or state of being lamentable; the condition of deserving regret, sorrow, or disappointment
Usage: abstract noun derived from the adjective 'lamentable'

Examples

• The lamentableness of the situation became clear when we learned how many people had been affected.
• Everyone recognized the lamentableness of the decision to cancel the scholarship program.
• The lamentableness of his performance disappointed the entire audience.
• She spoke about the lamentableness of poverty in developing nations.
• The lamentableness of the accident prompted new safety regulations.