Note: in AM, use 'grueling'
A ~ activity is extremely difficult and tiring to do.
He had complained of exhaustion after his ~ schedule over the past week...
This flight was more ~ than I had expected.
= exhausting
ADJ
Note: in AM, use 'grueling'
A ~ activity is extremely difficult and tiring to do.
He had complained of exhaustion after his ~ schedule over the past week...
This flight was more ~ than I had expected.
= exhausting
ADJ
Collins COBUILD. Толковый словарь английского языка для изучающих язык Коллинз COBUILD (международная база данных языков Бирмингемского университета) . 2012