strenuousness

/ˈstrɛnjuəsnəs/
noun
  1. The quality or state of requiring or involving great effort, energy, or strength.
    • The strenuousness of the job led many new employees to quit within the first month.
    • Doctors warned about the strenuousness of the recovery process after surgery.
    • The strenuousness of the hike surprised even the experienced climbers.
Antonyms
What does "strenuousness" mean? | whatsthatwordmean | whatsthatwordmean