adj.不和谐的；不成调子的；不悦耳的
His tuneless whistling jarred on my nerves. 我听到他吹着不和谐的口哨声感到心烦意乱。
Some modern music sounds harsh and tuneless. 现代音乐中有一些又刺耳又不成调子。
The song is tuneful, but her voice is tuneless. 歌很有旋律,可她的嗓子不动听。
