forlorn

adjective
1
appearing lonely and unhappy
تنها, بی‌کس, محزون, دل‌شکسته, غمگین, اندوهگین
2
not cared for and with no people in it
متروکه, بی‌کس, غریب
Empty houses quickly take on a forlorn look.
The cottage stood forlorn and empty.
3
unlikely to succeed, come true, etc.
بی‌ثمر, بی‌سرانجام, محکوم به شکست, ناکام
She waited in the forlorn hope that he would one day come back to her.
His father smiled weakly in a forlorn attempt to reassure him that everything was all right.