Monoideism

noun

noun ·Rare ·Advanced level

Definitions

Noun
  1. 1
    The domination of a single idea, as in certain mental disorders. uncountable
  2. 2
    a state of prolonged absorption in a single idea (as in mental depression, trance, hypnosis). wordnet

Etymology

From mono- + idea + -ism.

Related phrases

idée fixe

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