Secluded from society; not frequented by human beings; solitary.
- Dejected because of a lack of companionship. See Synonyms at alone.
- Producing such dejection: a lonesome hour at the bar.
- Deserted; unfrequented: a lonesome valley.
- Solitary; lone: a lonesome pine.
- Informal Self: He ate the meal all by his lonesome.