noun (plural idées fixes) Etymology: French, literally, fixed idea Date: 1836 an idea that dominates one's mind especially for a prolonged period ; obsession
IDÉE FIXE
Meaning of IDÉE FIXE in English
Merriam Webster. Explanatory English dictionary Merriam Webster. Толковый словарь английского языка Мерриам-Уэбстер. 2012