Meaning of the word lamentably in English

What does lamentably mean in English? Explore the meaning, pronunciation, and specific usage of this word with Lingoland.

lamentably

US /ləˈmen.t̬ə.bli/
UK /ləˈmen.tə.bli/

Adverb

regrettably; deplorably; sadly

Example:
The project was, lamentably, a complete failure.
His performance was lamentably poor.