1. gruelling - Noun
2. gruelling - Adjective
3. gruelling - Verb
4. gruelling - Adjective Satellite
characterized by effort to the point of exhaustion; especially physical effort
Source: WordNetThe part you don't expect when you start out is all the people who come into your life wanting a piece of you, not caring about your wellbeing. The insane schedule is very difficult. Touring looks very glamourous but it's hard and gruelling - the travelling, the meet-and-greets - it was too crazy. Cheryl James
I wasn't even sure I'd be able to walk. I couldn't even go outside. Maybe I was just burnt crisp from the gruelling schedule I had been keeping for years. Michael Flatley
worked their arduous way up the mining valley Source: Internet
a grueling campaign Source: Internet
hard labor Source: Internet
heavy work Source: Internet