backbreaking

or back-break·ing

[ bak-brey-king ]
/ ˈbækˌbreɪ kɪŋ /

adjective

demanding great effort, endurance, etc.; exhausting: a backbreaking job.

Origin of backbreaking

First recorded in 1780–90; back1 + break + -ing2
Related formsback·break·er, noun
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for backbreaking

  • According to political lore, patriot-Americans do the backbreaking work that keeps the country humming.

  • The combination of heat, hard, backbreaking work, and the necessity for hurry made haying a particularly fatiguing time.

    Frying Pan Farm|Elizabeth Brown Pryor
  • It will take some backbreaking investigation to get the whole story, because the files show nothing on any of them.

  • All they had to look forward to from the D'zertanoj was backbreaking labor and an early death.

    The Ethical Engineer|Henry Maxwell Dempsey

British Dictionary definitions for backbreaking

backbreaking

/ (ˈbækˌbreɪkɪŋ) /

adjective

demanding great effort; exhausting
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