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| as·sid·u·ous [ ə síjjoo əss ] |
adjective |
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| Definition: |
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very careful: showing persistent and hard-working effort in doing something
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| [Mid-16th century. < Latin assiduus< assidere (see assess), in a late sense "apply yourself"] |
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  as·sid·u·ous·ly adverb |
| as·sid·u·ous·ness noun |
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