Isolation And Solitude

noun a state of being alone or solitary, usually resulting in feelings of sadness or isolation

• Loneliness can have a negative impact on one's mental health.
• Feeling lonely sucks, doesn't it?
• I hate being in a loner mood.
• In a crowd full of people, she still felt the weight of loneliness on her shoulders.

verb to be stranded or isolated in a place, typically without means of escape

adjective stranded or isolated in a place, typically without means of escape

• The sailors were marooned on a deserted island after their ship sank.
• We got marooned at the beach because our car broke down.
• I felt totally marooned when my friends left me alone at the party.
• After losing my job, I felt marooned in a sea of uncertainty.