laborious

As adjectives the difference between laborious and constant

is that laborious is requiring much physical effort; toilsome while constant is unchanged through time or space; permanent.

As a noun constant is

that which is permanent or invariable.

As adjectives the difference between laborious and onerous

is that laborious is requiring much physical effort; toilsome while onerous is imposing or constituting a physical, mental, or figurative load which can be borne only with effort.

As adjectives the difference between laborious and monotonous

is that laborious is requiring much physical effort; toilsome while monotonous is having an unvarying tone or pitch.

Laborious is a related term of dogged.

As adjectives the difference between laborious and dogged

is that laborious is requiring much physical effort; toilsome while dogged is stubbornly persevering, steadfast.

As a verb dogged is

(dog).

Laborious is a related term of determined.

As adjectives the difference between laborious and determined

is that laborious is requiring much physical effort; toilsome while determined is decided; resolute, possessing much determination.

As a verb determined is

(determine).

Laborious is a related term of wearisome.

As adjectives the difference between laborious and wearisome

is that laborious is requiring much physical effort; toilsome while wearisome is tiresome, tedious or causing fatigue.

Laborious is a related term of confusing.

As adjectives the difference between laborious and confusing

is that laborious is requiring much physical effort; toilsome while confusing is difficult to understand; not clear as lacking order, chaotic etc.

As a verb confusing is

.

Laborious is a related term of troublesome.

As adjectives the difference between laborious and troublesome

is that laborious is requiring much physical effort; toilsome while troublesome is giving trouble or anxiety; vexatious; burdensome; wearisome.

Laborious is a related term of exhausting.

As adjectives the difference between laborious and exhausting

is that laborious is requiring much physical effort; toilsome while exhausting is very tiring.

As a verb exhausting is

.

Laborious is a related term of puzzling.

As adjectives the difference between laborious and puzzling

is that laborious is requiring much physical effort; toilsome while puzzling is difficult to understand or explain; enigmatic or confusing; perplexing.

As a verb puzzling is

.

As a noun puzzling is

time spent pondering something confusing.