backbreaking

  • (s) characterized by effort to the point of exhaustion; especially physical effort
    • worked their arduous way up the mining valley
    • a grueling campaign
    • hard labor
    • heavy work
    • heavy going
    • spent many laborious hours on the project
    • set a punishing pace
    arduous, grueling, gruelling, laborious, operose, toilsome, punishing, hard, heavy,

Synonyms

arduous grueling gruelling laborious operose toilsome punishing hard heavy

Words of close approximity