Part of speech: adverb


Part of speech: noun


Part of speech: adjective

Laborious; difficult.

Part of speech: adjective

Steep and lofty.

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Usage examples "arduous":

  1. Could I but march under the banner of such a leader I thought nothing would be too arduous to be achieved. - "The History of Sandford and Merton", Thomas Day.
  2. No; you let the physicians alone; you do not abuse them in their arduous and conscientious duties. - "The Priest, The Woman And The Confessional", Father Chiniquy.
  3. He was a skillful horseman, an unerring shot, always cheerful and courteous, ready to perform the most arduous duty and, withal, fearless. - "The History of Company A, Second Illinois Cavalry", Samuel H. Fletcher.