laborious synonyms

laborious

modif.

  1. Difficult

    arduous, hard, stiff; see difficult 1.

  2. Industrious

    assiduous, indefatigable, diligent; see active 2. See syn. study at difficult.

Webster's New World Roget's A-Z Thesaurus Copyright © 1999 by Wiley Publishing, Inc., Cleveland, Ohio.
Used by arrangement with John Wiley & Sons, Inc.