obsessionist

Etymology

From obsession + -ist.

obsessionist means A person who has an obsession; an obsessive. Lexicurio rates it Sui generis — a strength score of 88 out of 100.

noun

A person who has an obsession; an obsessive.“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.”