Synonyms of fixation in English:

fixation


See US English definition of fixation

See UK English definition of fixation

See Spanish definition of obsesión

noun

1‘the modern fixation on fitness’

SYNONYMS
obsession with, preoccupation with, mania for
monomania, fetish, addiction, complex, neurosis, compulsion
idée fixe
informal hang-up, thing, yen, rage, bug, craze, fad, bee in one's bonnet