lonely
US /ˈloʊn.li/
UK /ˈloʊn.li/

1.
sad because one has no friends or company
:
•
She felt lonely after moving to a new city.
•
He spent a lonely Christmas by himself.
2.
providing a feeling of isolation; remote from human habitation
:
•
They drove down a long, lonely road.
•
The old lighthouse stood on a lonely stretch of coast.