paid off (adjective) gainful: very productive, profitable
Sinonime: acute,
agonizing,
burning, chastening,
consuming,
exquisite,
extreme,
grueling,
harrowing, insufferable,
intense,
piercing, punishing, racking, rending, searing,
severe,
sharp, shooting, stabbing, tearing, tormenting, torturesome, torturing,
unbearable, unendurable,
violentAntonime: bearable, endurable,
helpful,
pleasant,
pleasing,
soothing