something brain (noun) obsession: fixation; consumption with belief, desire
Sinonime: attraction, ax to grind, bug in ear,
case*,
complex,
compulsion, concrete idea,
craze*,
crush,
delusion,
enthusiasm,
fancy,
fascination,
fetish, hang-up, idée fixe,
infatuation,
mania,
monkey*,
must, neurosis, one-track mind,
passion,
phantom, phobia,
preoccupation, something on the brain,
thing*, tiger by the tail
Antonime: indifference