arduous
Pronunciation
  • (RP) IPA: /ˈɑːdjuːəs/, /ˈɑːd͡ʒuːəs/
  • (America) IPA: /ˈɑːɹd͡ʒuəs/
Adjective

arduous

  1. Needing or using up much energy; testing powers of endurance.
    The movement towards a peaceful settlement has been a long and arduous political struggle.
  2. (obsolete) burning; ardent
    • Cary:
      quote en
  3. Difficult or exhausting to traverse.
    • 1999, Scott Ciencin, Mike Fredericks, Dinoverse:
      Mike looked up from the arduous mountain trail. They'd been climbing for five hours and he was beginning to feel irritable.
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