grueling

As adjectives the difference between rigorous and grueling

is that rigorous is manifesting, exercising, or favoring rigour; allowing no abatement or mitigation; scrupulously accurate; exact; strict; severe; relentless; as, a rigorous officer of justice; a rigorous execution of law; a rigorous definition or demonstration while grueling is .

As a noun attrition

is wearing or grinding down by friction.

As an adjective grueling is

.

As a verb rending

is .

As a noun rending

is the act by which something is rent, or torn.

As an adjective grueling is

.

As adjectives the difference between grueling and gruesome

is that grueling is while gruesome is repellently frightful and shocking; horrific or ghastly.

As adjectives the difference between strenuous and grueling

is that strenuous is urgent, ardent, zealous while grueling is .

As an adjective grueling

is .

As a noun difficulty is

the state of being difficult, or hard to do.

As adjectives the difference between daunting and grueling

is that daunting is discouraging, inspiring fear while grueling is .

As a verb daunting

is .

As adjectives the difference between grueling and taxing

is that grueling is an alternative spelling of lang=en while taxing is with respect to an experience: exhausting; draining.

As a verb taxing is

present participle of lang=en.

As a noun taxing is

the act of imposing a tax.

As adjectives the difference between grueling and tricky

is that grueling is while tricky is hard to deal with, complicated.

As a noun congee

is (obsolete) formal departure, ceremonial leave-taking or congee can be a type of thick rice porridge or soup, sometimes prepared with vegetables and/or meat.

As an adjective grueling is

.