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laborious

laborious definition

la·bo·ri·ous (lə bôr′ē əs)

adjective

involving or calling for much hard work; difficult
industrious; hardworking
labored

Etymology: ME < OFr laborios < L laboriosus < labor, labor

Related Forms:

laboriously la·bo′·ri·ously adverb
laboriousness la·bo′·ri·ous·ness noun

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