✔ 最佳答案
The meaning is :
a.
1. 寂寞的;孤單的
She was lonesome while her husband was away on business.
當丈夫因事外出時,她感到孤單寂寞。
2. 人跡稀少的,荒涼的
She walked in fear on the lonesome road.
她在一條人跡稀少的路上走著,心裡很害怕。
3. 想念的,思念的[F][(+for)]
He was lonesome for his family when he was abroad.
他在海外時很思念他的家。
n.
1. 【口】自己,本人[U]
He is sitting home all by his lonesome.
他獨自一人坐在家裡。
http://hk.dictionary.yahoo.com/search.html?q=1&s=lonesome
Hope can help you la ^_^