obsessionist

English

Etymology

From obsession +‎ -ist.

Noun

obsessionist (plural obsessionists)

1. A person who has an obsession; an obsessive.
   • 2015 August 24, Anita Gates, “Review: ‘Drop Dead Perfect,’ Winking Melodrama, Returns to St. Clement’s”, in New York Times‎:

     The best bit is the most obscure: When Vivien announces her plans to stay temporarily with a local antiques dealer, Ethel Mae Potter, only “Lucy” obsessionists may recognize Ethel Mertz’s maiden name.