a.

1. 调和的；和谐的；协调的
   The room was painted in harmonious colors.

   房间油漆得色彩调和。

2. 和睦的；友好的
   Relations with our neighbors aren't very harmonious at the moment.

   目前我们与邻居的关系不很融洽。

3. 悦耳的；和声的
   a harmonious musical chord

   悦耳的音乐和音

adj.

1. tuneful; not discordant.
2. forming a pleasing or consistent whole.
   ▸free from conflict.