Laborious
Laborious , adjective
[Latin laboriosus, from labor labor: compare French laborieux.]
1.
Requiring labor, perseverance, or sacrifices; toilsome; tiresome.
Dost thou love watchings, abstinence, or toil,
Laborious virtues all? Learn these from Cato.
2.
Devoted to labor; diligent; industrious; as, a laborious mechanic.