la·bo·ri·ous /ləˈboriəs, ˈbɔr-/
1. Requiring labor, perseverance, or sacrifices; toilsome; tiresome.
Dost thou love watchings, abstinence, or toil,
Laborious virtues all? Learn these from Cato. --Addison.
2. Devoted to labor; diligent; industrious; as, a laborious mechanic.
-- La*bo*ri*ous*ly, adv. -- La*bo*ri*ous*ness, n.
adj : characterized by toilsome effort to the point of exhaustion;
especially physical effort; "worked their arduous way
up the mining valley"; "a grueling campaign"; "hard
labor"; "heavy work"; "heavy going"; "spent many
laborious hours on the project"; "set a punishing pace"
[syn: arduous, backbreaking, grueling, gruelling,
hard, heavy, punishing, toilsome]