1. in a way that is regrettable or disappointing

Examples

• The team performed lamentably in the championship game.
• Her essay was lamentably short and poorly researched.
• The restaurant’s service was lamentably slow that evening.
• The city’s infrastructure has been lamentably neglected for years.
• He was lamentably unprepared for the important presentation.
• The movie was lamentably boring despite its promising trailer.