LABORIOUS

laborious. laborious, painfull, full of labour

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laborious. Laborious, a. diligent in work, difficult, heavy

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La‐bo″ri‐ous (?), a. [[L. laboriosus,fr. labor labor: cf. F. laborieux.]] 1. 1. Requiring labor, perseverance, or sacrifices; toilsome; tiresome.
Dost thou love watchings, abstinence, or toil, Laborious virtues all ? Learn these from Cato. Addison. 2. 2. Devoted to labor; diligent; industrious; as, a laborious mechanic.
— La‐bo″ri‐ous‐ly, adv. — La‐bo″ri‐ous‐ness, n.