1) Quality 
Unpopularity, the opposite of popularity, is the quality of lacking acceptance or approval by one`s peers. ==Development== The importance of peer relations in an adolescent`s normal psychosocial development has been well-researched. The impact of peers is hardly surprising, given that high school students spend the majority of their days with pe.....
[n] - the quality of lacking general approval or acceptance
unpopularity 1. The state of not enjoying the public favor or of not pleasing the people. 2. The quality of lacking general approval or acceptance.
noun the quality of lacking general approval or acceptance