tuneless

1. ADJ Tuneless music and voices do not sound pleasant. (指音乐和声音)不成调的; 不悦耳的[usu ADJ n]

Someone walked by, singing a tuneless song. 有人走过，唱着一首不成调的歌。

2. tunelesslyADV

My dad whistled tunelessly through his teeth. 我爸爸从牙缝里乱吹口哨，曲不成调。