What is "undateable"

a. (alternative form of undatable English)

Undateable is an American television sitcom that aired on NBC from May 29, 2014 to January 29, 2016 and originally premiered as a mid-season replacement. The series was created by Adam Sztykiel and is based on the book Undateable: 311 Things Guys do That Guarantee They Won't be Dating or Having Sex by Ellen Rakieten and Anne Coyle. On May 8, 2015, NBC renewed Undateable for a third season that consisted entirely of live episodes, which premiered on October 9, 2015. On May 13, 2016, NBC canceled the series after three seasons.