gruelling
gru|el|ling /gr'uːəlɪŋ/
in AM, use grueling
[ADJ]
A gruelling activity is extremely difficult and tiring to do.
He had complained of exhaustion after his gruelling schedule over the past week...
This flight was more gruelling than I had expected.
= exhausting
in AM, use grueling
[ADJ]
A gruelling activity is extremely difficult and tiring to do.
He had complained of exhaustion after his gruelling schedule over the past week...
This flight was more gruelling than I had expected.
= exhausting