Synonyms and Antonyms of arduous
1 requiring considerable physical or mental effort climbing Mount Everest is an arduous, exhausting challenge Synonyms of arduous hard, Augean, backbreaking, challenging, demanding, difficult, effortful, exacting, formidable, grueling (or gruelling), heavy, hellacious, herculean, killer, laborious, moiling, murderous, pick-and-shovel, rigorous, rough, rugged, severe, stiff, strenuous, sweaty, tall, testing, toilsome, tough, uphillWords Related to arduous 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; grievous, grim, strict, stringent; brutal, cruel, inhuman, painfulNear Antonyms of arduous achievable, clear, doable, elementary, manageable, uncomplicated; comforting, gentle, painless, relaxed, smooth, soothing; accessible, friendly, idiotproof, user-friendlyAntonyms of arduous cheap, easy, effortless, facile, light, mindless, simple, soft, undemanding
2 requiring much time, effort, or careful attention the arduous task of doing the research for my term paper Synonyms of arduous demanding, burdensome, challenging, exacting, grueling (or gruelling), killing, laborious, onerous, persnickety, taxing, toilsomeWords Related to arduous difficult, formidable, hard, herculean, rough, rugged, stiff, strenuous, testing, tough; oppressive, trying; rigid, rigorous, severe, stern, strict, stringentNear Antonyms of arduous easy, effortless, facile, simple, smoothAntonyms of arduous light, nondemanding, unchallenging, undemanding
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