English edit

Etymology edit

Calque of French idée fixe.

Noun edit

fixed idea (plural fixed ideas)

  1. An idée fixe, an obsession.
    • 1987, Joan Didion, Miami, Granta, published 2005, page 77:
      [I]t was systemic, directed by Washington and signaling a rapprochement between the Americans and Havana, the imminence of which was a fixed idea among Miami Cubans.