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Definition of Arduous
Ar´du`ous
Related Words
Herculean, abrupt, abstruse, backbreaking, brutal, complex, critical, crushing, delicate, demanding, difficile, effortful, energetic, exacting, exhausting, fatiguing, forced, formidable, grueling, hairy, heavy, hefty, intricate, jawbreaking, killing, knotted, knotty, labored, mean, no picnic, not easy, onerous, operose, oppressive, painful, precipitate, precipitous, punishing, rigorous, rough, rugged, set with thorns, severe, sheer, sideling, spiny, steep, stickle, strained, taxing, thorny, ticklish, tiring, toilsome, tough, tricksy, tricky, troublesome, trying, uphill, vigorous, wearisome, wicked
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