on the brain (noun) mania: fixation, madness
Sinonime: barren,
disagreeable,
distasteful,
fruitless,
futile,
miserable, not worth it, ungrateful,
unpleasant, unprofitable, unrecognized,
unrequited, unreturned, unrewarding,
useless,
vain,
wretchedAntonime: appreciated,
contented, grateful, rewarded,
satisfied, thankful