LABO'RIOUS, adjective [Latin laboriosus.] 1. Using exertion; employing labor; diligent in work or service; assiduous; used of persons; as a laborious husbandman or mechanic; a laborious minister or pastor. 2. Requiring labor; toilsome; tiresome; not easy; as laborious duties or services. 3. Requiring labor, exertion, perseverance or sacrifices. Dost thou love watchings, abstinence or toil, laborious virtues all? Learn these from Cato.
Source: Webster's 1828 American Dictionary ↗ · public-domain · returned verbatim, no AI