laborious Hear it!

laborious definition

la·bo·ri·ous (lə bôr′ē əs)

adjective

  1. involving or calling for much hard work; difficult
  2. industrious; hardworking
  3. labored

Etymology: ME < OFr laborios < L laboriosus < labor, labor

Related Forms:

Webster's New World College Dictionary Copyright © 2005 by Wiley Publishing, Inc., Cleveland, Ohio.
Used by arrangement with John Wiley & Sons, Inc.

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