grueling
adj. B2 Upper Intermediate US //ˈɡɹuɪɫɪŋ// UK //ɡɹˈuːəlɪŋ// gru·el·ing
adj. extremely tiring and difficult. You use this to describe a task or journey that takes a lot of effort and leaves you feeling exhausted.
adj. extremely demanding and exhausting. Often describes physical or mental tasks that require intense effort over a long period.
The runners finished a grueling race in the heat.
After a grueling ten-hour shift at the hospital, the nurse was too tired to even cook dinner.
The legal team endured a grueling month of discovery, reviewing thousands of documents daily to meet the court's strict deadline for the upcoming trial.
Usage
Commonly modifies nouns related to physical effort like 'schedule', 'workout', 'race', or 'journey'.