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| ar·du·ous [ rjoo əss ] |
adjective |
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| Definition: |
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1. difficult and tiring: requiring hard work or continuous physical effort
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2. steep or demanding: very difficult to traverse, endure, or overcome
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| [Mid-16th century. < Latin arduus "steep, difficult"] |
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  ar·du·ous·ly adverb |
| ar·du·ous·ness noun |
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