loneliness
//ˈloʊn.li.nəs//
Noun
1
The state of being alone and feeling sad or unhappy about it; a feeling of isolation or lack of companionship.
After moving to a new city, she struggled with feelings of loneliness.
2
The quality of a place being remote, uninhabited, or desolate.
The loneliness of the mountain trail made it feel like we were the only people in the world.