• synonyms


[luh-bawr-ee-uhs, -bohr-]
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  1. requiring much work, exertion, or perseverance: a laborious undertaking.
  2. characterized by or requiring extreme care and much attention to detail: laborious research.
  3. characterized by or exhibiting excessive effort, dullness, and lack of spontaneity; labored: a strained, laborious plot.
  4. given to or diligent in work: a careful, laborious craftsman.
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Origin of laborious

First recorded in 1350–1400; Middle English word from Latin word labōriōsus. See labor, -ious
Related formsla·bo·ri·ous·ly, adverbla·bo·ri·ous·ness, nounqua·si-la·bo·ri·ous, adjectivequa·si-la·bo·ri·ous·ly, adverbsu·per·la·bo·ri·ous, adjectivesu·per·la·bo·ri·ous·ly, adverbsu·per·la·bo·ri·ous·ness, nounun·la·bo·ri·ous, adjectiveun·la·bo·ri·ous·ly, adverbun·la·bo·ri·ous·ness, noun


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Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

Related Words


Examples from the Web for laboriously

Contemporary Examples

Historical Examples

  • The parson had seated himself by the stove, and was laboriously removing his arctics.

    Tiverton Tales

    Alice Brown

  • He measured these round his waist, and then began to stitch them together, slowly and laboriously.

    Henry Dunbar

    M. E. Braddon

  • He laboriously made out a document, which Banker as laboriously signed.

    Louisiana Lou

    William West Winter

  • He found the ladder and laboriously dragged it beneath the window.

    Thankful's Inheritance

    Joseph C. Lincoln

  • His dress has been laboriously genteel, but is torn and soiled.

    Dr. Sevier

    George W. Cable

British Dictionary definitions for laboriously


  1. involving great exertion or long effort
  2. given to working hard
  3. (of literary style, etc) not fluent
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Derived Formslaboriously, adverblaboriousness, noun
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Word Origin and History for laboriously


early 15c., "with difficulty, laboriously, slowly," from laborious + -ly (2). Meaning "earnestly, strongly" is from c.1500.

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late 14c., "hard-working, industrious," from Old French laborios "arduous, wearisome; hard-working" (12c., Modern French laborieux), from Latin laboriosus "toilsome, wearisome, troublesome," from labor (see labor (n.)). Meaning "costing much labor, burdensome" is from early 15c.; meaning "resulting from hard work" is mid-15c. Related: Laboriousness.

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Online Etymology Dictionary, © 2010 Douglas Harper