backbreaking

As adjectives the difference between demanding and backbreaking

is that demanding is requiring much endurance, strength, or patience while backbreaking is (figuratively) of work, very physically tiring.

As a verb demanding

is .

As adjectives the difference between strenuous and backbreaking

is that strenuous is urgent, ardent, zealous while backbreaking is (figuratively) of work, very physically tiring.

As adjectives the difference between backbreaking and painstaking

is that backbreaking is (figuratively) of work, very physically tiring while painstaking is carefully attentive to details; diligent in performing a process or procedure.

As a noun painstaking is

the application of careful and attentive effort.

As adjectives the difference between backbreaking and arduous

is that backbreaking is of work, very physically tiring while arduous is needing or using up much energy; testing powers of endurance.

As an adjective backbreaking

is (figuratively) of work, very physically tiring.

As a verb laboring is

(us).

As a noun laboring is

the act of one who labors; toil; work done.

As an adjective backbreaking

is (figuratively) of work, very physically tiring.

As a verb labouring is

(british|canada).

As a noun labouring is

the act of one who labours; toil; work done.

As a noun taxonomy

is the science or the technique used to make a classification.

As an adjective backbreaking is

(figuratively) of work, very physically tiring.