lamentable
adjective /ləˈmentəbl/, /ˈlæməntəbl/
/ləˈmentəbl/, /ˈlæməntəbl/
(formal)- very disappointing synonym deplorable, regrettable
- She shows a lamentable lack of understanding.
Oxford Collocations DictionaryLamentable is used with these nouns:- failure
Word Originlate Middle English (in the sense ‘mournful’, also ‘pitiable, regrettable’): from Old French, or from Latin lamentabilis, from the verb lamentari, from lamenta (plural) ‘weeping, wailing’.