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fixed idea



  1. an exaggerated notion, belief, or delusion that persists, despite evidence to the contrary, and controls the mind;
  2. the obstinate conviction of a psychotic person regarding the correctness of a delusion.

Synonym(s): idée fixe, overvalued idea

Further information

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© Copyright 2018 Wolters Kluwer. All Rights Reserved. Review date: Sep 19, 2016.