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。

adj.