monomaniac

• Nom désignant une personne obsédée de manière pathologique par une seule idée, un seul sujet ou un seul intérêt, souvent au détriment de tout le reste.

A noun referring to a person who is pathologically obsessed with a single idea, subject, or interest, often to the exclusion of all else.

1. Obsessive personC1formal

   A person who is excessively focused on a single idea, subject, or goal to the exclusion of all else.

   Personne obsessionnelle

   • He was a monomaniac about cleanliness, scrubbing every surface twice a day.
   • The inventor became a monomaniac, working only on his perpetual motion machine.
   • She was a monomaniac for justice, dedicating her entire life to one legal case.

   Synonymesfanaticmaniacobsessivezealot