gruelling

Gruelling is a synonym of racking.

As an adjective gruelling

is so difficult or taxing as to make one exhausted; backbreaking.

As a noun racking is

a method of asphalt shingle application, whereby shingle courses are applied vertically, up the roof rather than laterally across and up.

As a verb racking is

.

As adjectives the difference between gruelling and brutal

is that gruelling is so difficult or taxing as to make one exhausted; backbreaking while brutal is (savagely violent)Savagely violent, vicious, ruthless, or cruel.

Disagreeable is a related term of gruelling.

As adjectives the difference between disagreeable and gruelling

is that disagreeable is not agreeable, conformable, or congruous; contrary; unsuitable while gruelling is so difficult or taxing as to make one exhausted; backbreaking.

As a noun disagreeable

is something displeasing; anything that is disagreeable.

As adjectives the difference between gruelling and strenuous

is that gruelling is so difficult or taxing as to make one exhausted; backbreaking while strenuous is urgent, ardent, zealous.

As adjectives the difference between tough and gruelling

is that tough is strong and resilient; sturdy while gruelling is so difficult or taxing as to make one exhausted; backbreaking.

As an interjection tough

is (slang) (used to indicate lack of sympathy).

As a noun tough

is a person who obtains things by force; a thug or bully.

As a verb tough

is to endure.

As adjectives the difference between gruelling and challenging

is that gruelling is so difficult or taxing as to make one exhausted; backbreaking while challenging is difficult, hard to do.

As a verb challenging is

present participle of lang=en.

As a noun challenging is

the act of making a challenge.

Unpleasant is a related term of gruelling.

As adjectives the difference between unpleasant and gruelling

is that unpleasant is not pleasant while gruelling is so difficult or taxing as to make one exhausted; backbreaking.

Gruelling is a related term of grievous.

As adjectives the difference between gruelling and grievous

is that gruelling is so difficult or taxing as to make one exhausted; backbreaking while grievous is causing grief, pain or sorrow.

Gruelling is a related term of dismal.

As adjectives the difference between gruelling and dismal

is that gruelling is so difficult or taxing as to make one exhausted; backbreaking while dismal is disappointingly inadequate.

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.