Definition of grueling adjective from the Oxford Advanced American Dictionary

     

    grueling

     adjective
    adjective
    NAmE//ˈɡruəlɪŋ//
     
     
    jump to other results
  1. 1very difficult and tiring, needing great effort for a long time synonym punishing
  2. 2 a grueling trip/schedule I've had a grueling day.