Quantcast
Merriam-Webster Logo
  • Dictionary
  • Thesaurus
  • Medical
  • Scrabble
  • Spanish Central
  • Learner's Dictionary

laborious

play
adjective la·bo·ri·ous \lə-ˈbȯr-ē-əs\

Simple Definition of laborious

  • : requiring a lot of time and effort

Full Definition of laborious

  1. 1 :  devoted to labor :  industrious

  2. 2 :  involving or characterized by hard or toilsome effort :  labored

la·bo·ri·ous·ly adverb
la·bo·ri·ous·ness noun

Examples of laborious

  1. a slow and laborious process

  2. <the volunteers have been commendably laborious in their cleanup of the beach>



14th Century

First Known Use of laborious

14th century



Seen and Heard

What made you want to look up laborious? Please tell us where you read or heard it (including the quote, if possible).

WORD OF THE DAY

February 7, 2016

a slight offense

Get Word of the Day daily email!

WORD GAMES

Take a 3-minute break and test your skills!

image1037863653

Which of the following refers to thin, bending ice, or to the act of running over such ice?

kittly-benders pince-nez spindrift duvet
Name That Thing

10 quick questions: hear them, spell them, and see how your skills compare to the crowd.

TAKE THE QUIZ
SCRABBLE® Sprint

Test Your Knowledge - and learn some interesting things along the way.

TAKE THE QUIZ