Obsessionist

noun

noun ·Rare ·Advanced level

Definitions

Noun
  1. 1
    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."

Example

More examples

"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."

Etymology

From obsession + -ist.

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Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.