hopeless

without hope because there seems to be no possibility of comfort or success; "in an agony of hopeless grief"; "with a hopeless sigh he sat down"

of a person unable to do something skillfully; "I'm hopeless at mathematics"

certain to fail; "the situation is hopeless"

(informal to emphasize how bad it is) beyond hope of management or reform; "she handed me a hopeless jumble of papers"; "he is a hopeless romantic"