Hopeless
Part of speech: adjective
Definition: Destitute of hope; having no expectation of good; despairing. Giving no ground of hope; promising nothing desirable; desperate;
Example sentence: I'm a hopeless romantic.
Forlorn
Part of speech: verb
Definition: To abandon, forsake.
Part of speech: adjective
Definition: abandoned, left behind, desertedmiserable, as when lonely being abandoned.