demimonde

noun3

1. •
   A class of women maintained by wealthy protectors; female courtesans or prostitutes as a group.

   • Skating Rinks are chiefly patronised by members of the demi[-]monde. — 1878
2. •
   A group having little respect or reputation.

   • Through a series of ethnicized disciplinary institutions—factory, family—shopfloor workers and their relatives and friends working at home are drawn into an ethnic demimonde of docile labor. — 2006
3. •
   A member of such a class or group of persons.

   • On the evening of 4 August 1914 London's Café Royal was alive with its usual array of demimondes, dandies, aristocrats, émigrés, and self-styled bohemians. — 2010