backbreaking

/ˈbækˌbreɪkɪŋ/
adjective
  1. Requiring great physical effort and causing exhaustion; very hard work.
    • Harvesting the crops by hand is backbreaking labor under the hot sun.
    • Digging a trench through rocky soil is backbreaking work.
    • She quit her backbreaking job at the warehouse to find something less demanding.
  2. Extremely difficult or demanding in a non-physical sense, such as mentally or emotionally.
    • The backbreaking schedule of back-to-back meetings left everyone drained.
    • Running a small business can be backbreaking, especially in the first few years.
    • Studying for the bar exam was backbreaking, but she passed on her first try.
Antonyms
What does "backbreaking" mean? | whatsthatwordmean | whatsthatwordmean