lam ‧ ent ‧ a ‧ ble /ˈlæməntəb ə l, ləˈmentəb ə l/ BrE AmE adjective formal
very unsatisfactory or disappointing SYN terrible :
a lamentable state of affairs
a lamentable lack of support for the idea
It is lamentable that the officer failed to deal with the situation.
—lamentably adverb