fixation
(Informal)
[noun]
Synonyms: preoccupation, complex, hang-up (informal), idée fixe, infatuation, mania, obsession, thing (informal)

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Related Idioms: bee in one's bonnet
Related Words: craze, fascination, infatuation

[TahlilGaran] English Synonym Dictionary ▲

fix‧a‧tion /fɪkˈseɪʃən/ noun [countable]

1. a very strong interest in or love for someone or something, that is not natural or healthy
fixation on/with/about
Carlo has an absolute fixation with the royal family.
a mother fixation

2. technical a kind of mental illness in which someone’s mind or emotions stop developing

[TahlilGaran] Dictionary of Contemporary English ▲