tuneless

1. ADJ Tuneless music and voices do not sound pleasant. (指音樂和聲音)不成調的; 不悅耳的[usu ADJ n]

Someone walked by, singing a tuneless song. 有人走過，唱著一首不成調的歌。

2. tunelesslyADV

My dad whistled tunelessly through his teeth. 我爸爸從牙縫裡亂吹口哨，曲不成調。