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arduous

English

  1. 🔊 difficult to accomplish
    “the arduous work of preparing a dictionary”
  2. 🔊 characterized by effort to the point of exhaustion
    “worked their arduous way up the mining valley”
  3. 🔊 taxing to the utmost
    “his final, straining burst of speed”

Spanish

  1. 🔊 arduo arduous
  2. 🔊 espinoso arduous
  3. 🔊 trabajoso arduous

Similar words

backbreaking grueling gruelling hard heavy laborious operose punishing toilsome straining strenuous herculean abrupt abstruse backbreaking brutal burdensome complex critical crushing delicate demanding difficile difficult