American Heritage® Dictionary of the English Language, Fourth Edition
- adj. Marked by or requiring long, hard work: spent many laborious hours on the project.
- adj. Hard-working; industrious.
Century Dictionary and Cyclopedia
- Requiring much labor, exertion, or perseverance; toilsome; not easy: as, laborious duties; a laborious undertaking.
- Using exertion; practising labor; diligent in work or service; assiduous: as, a laborious husbandman or mechanic; a laborious minister or pastor.
- Characterized by labor or effort; marked by or manifesting labor.
- Synonyms Difficult arduous, wearisome, fatiguing, onerous.
- Industrious, painstaking, active, hard-working.
- adj. Requiring much physical effort; toilsome.
- adj. Mentally difficult; painstaking
- adj. Industrious.
GNU Webster's 1913
- adj. Requiring labor, perseverance, or sacrifices; toilsome; tiresome.
- adj. Devoted to labor; diligent; industrious.
- adj. characterized by effort to the point of exhaustion; especially physical effort
- Middle English, from Old French laborieux, from Latin labōriōsus, from labor, labor. (American Heritage® Dictionary of the English Language, Fourth Edition)
“The unfortunate reputation that writing often bears as being boring and laborious is likely a result of people writing about uninteresting topics and doing so only out of necessity.”
“For the most part it was a silent forest, lush and dank, where only occasionally a wood-pigeon cooed or snow - white cockatoos laughed harshly in laborious flight.”
“If woman be the weaker creature, why is she employed in laborious avocations? why compelled to endure the fatigue of household drudgery; to scrub, to scower, to labour, both late and early, while the powdered lacquey only waits at the chair, or behind the carriage of his employer?”
“His veracity, that is, his laborious accuracy, is admitted by the only persons competent to form an opinion, namely, independent investigators who have followed in his track; but what may be called the internal evidence of the case also supplies a strong proof of it.”
“The feathers of these gay little sylphs, most of them from the Southern States, are most brilliant, and are represented with what, were it [not] connected with so much spirit in the attitude, I would call a laborious degree of execution.”
“In the future, visitors will theoretically be able to go to the site when the mood strikes, much as they visit the Vietnam Veterans Memorial in Washington D.C. But for now and the next few years, accessing the Sept. 11 Memorial will entail a laborious process requiring the reservation of tickets ahead of time, and then, on the appointed date, wending through a downtown obstacle course involving two outdoor ticket screening points and a security checkpoint inside 90 West St.”
“His most stable job, obviously, was the one he had working as a rigger mechanic at the navy yard, and as I started to say, he did generally that kind of laborious work for quite a few years until the latter part of my stay at home, which was when I was about sixteen or seventeen years old.”
“Gervase, speaking of one of these species, says: -- "If anything should be to be carried on in the house, or any kind of laborious work to be done, they join themselves to the work, and expedite it with more than human facility.”
“These buildings have been almost entirely erected by the soldiers, who are compelled to work from morning till night at every kind of laborious employment.”
“Rice County Sheriff Richard Cook says the search has been "laborious" as rescuers fight a strong current and near-freezing water temperatures.”
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