"Unsent" is a song by Canadian singer-songwriter Alanis Morissette from her fourth studio album, Supposed Former Infatuation Junkie (1998). The lyrics were written by Morissette, who also composed the music with Glen Ballard. It was released as the album's third single on March 18, 1999. It was one of the few Junkie tracks on which she played her harmonica. Morissette directed the music video for the song. Without a chorus or hook, "Unsent" has an unconventional song structure. The lyrics consist of letters addressed to Morissette's former boyfriends and friends. The single became a moderate hit, reaching number nine in Canada, number 28 in New Zealand, and number 58 in the United States.