1. feeling sad because of being alone or without companions
2. causing feelings of loneliness; remote and desolate

Examples

• She felt lonesome after her friends moved away.
• The old man sat lonesome on the park bench.
• It’s a lonesome road through the desert.
• The lonesome cabin stood at the edge of the forest.
• He grew lonesome during the long winter months.
• The lonesome sound of the train whistle echoed through the valley.
• Living in the city, she never expected to feel so lonesome.