As adjectives the difference between gruelling and torturous
is that gruelling is so difficult or taxing as to make one exhausted; backbreaking while torturous is of or pertaining to torture.
gruelling
English
Alternative forms
* grueling
Adjective
(
en adjective)
So difficult or taxing as to make one exhausted; backbreaking.
Synonyms
* (so difficult or taxing as to make one exhausted) backbreaking, exhausting
torturous
English
Adjective
(
en adjective)
Of or pertaining to torture.
Painful, excruciating, torturing.
Usage notes
* Sometimes confused with tortuous.
Synonyms
* tormentous