I deleted a song from my music library but it's still there? IPhone

What can I do to fully get rid of it?

Don't sync. I never do. I use manual management on my iPhone and iPods. The only time I had this problem was when I hooked up my 5S for the first time.

To get rid of a song using your device when not connected to the computer hold your finger on the so g on the song list and slide it to one side (forget which). It's sort of like swiping on older versions of iOS but your holding your finger down as if hi were actually movin it.

Did you delete it from the iTunes library? If not, iTunes will automatically sync the song you deleted on your iPhone again. Or… ICloud?