Thesaurus
arduous
Synonyms and Antonyms of arduous
1
requiring considerable physical or mental effort
Augean, backbreaking, challenging, demanding, difficult, effortful, exacting, formidable, grueling (or gruelling), hard, heavy, hellacious, herculean, killer, laborious, moiling, murderous, pick-and-shovel, rigorous, rough, rugged, severe, stiff, strenuous, sweaty, tall, testing, toilsome, tough, uphill
abstract, abstruse, complex, complicated, elusive, hairy, insoluble, intricate, involved, knotty, opaque, problematic (also problematical), recondite, serious, spiny, stubborn, thorny, ticklish, tricky
bruising, burdensome, exhausting, labored, onerous, oppressive, stressful, taxing, tight, trying
annoying, bothersome, distressing, irksome, troublesome, vexatious
cheap, easy, effortless, facile, light, mindless, simple, soft, undemanding
2
requiring much time, effort, or careful attention
burdensome, challenging, demanding, exacting, grueling (or gruelling), killing, laborious, onerous, persnickety, taxing, toilsome
easy, effortless, facile, simple, smooth
Synonym Discussion of arduous
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- farming is hard work
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- the difficult ascent of the mountain
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- the arduous task of rebuilding
Learn More about arduous
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Dictionary: Definition of arduous Spanish Central: Translation of arduous Nglish: Translation of arduous for Spanish speakers Britannica English: Translation of arduous for Arabic speakers
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