Urban unemployment refers to the number of people in urban areas who are unemployed. However, there are several synonyms that can be used to describe this phenomenon. One synonym could be "metropolitan joblessness," which emphasizes that the unemployment is occurring in large cities. Another option is "city unemployment," which captures the fact that urban areas have higher concentrations of people. Additionally, "metro joblessness" and "town unemployment" could also be used interchangeably with urban unemployment. Regardless of the wording chosen, all of these terms refer to the problem of not having enough job opportunities in urban areas to meet the demand from its residents.