hopeless
hope-less
adjective
Feeling or causing despair; without hope or prospect of improvement.
"The situation looked utterly hopeless after the defeat."
adjective
Completely without skill or ability in a particular activity.
"I'm absolutely hopeless at maths, always have been."
Thesaurus
Synonyms: impossible, forlorn, desperate, lost, unhopeful, abject, bleak, despairing, heartsick, helpless, dim, despondent
Antonyms: hopeful