The definition of assiduous is someone that is diligent and constant.
Difficult to undertake, surmount, or defeat:
The definition of arduous is a way of describing something that is extremely tiring and difficult.
Lacking in shade; undiminished:
Difficult to do or deal with
The definition of burdensome is something that is hard to deal with, or that places too great of expectations.
Persevering and constant in effort or application; assiduous.
Characterized by or requiring toil.
Difficult to endure; severe; harsh:
The definition of idle is doing nothing or not filled with activities or actions.
Demanding great exertion; arduous and exhausting.
The definition of hardworking is a term used to describe a person or thing that is diligent or zealous at completing a task.
Rigorous is defined as something that is harsh or very strict.
The definition of strenuous is something that takes a lot of effort, work or energy to do.
Marked by difficulty or strong resistance; laborious:
Free from worry, anxiety, trouble, or pain:
(--- Biology) Having no divisions or branches; not compound:
Acting, working, or done easily, or in a quick, smooth way; fluent; ready
The definition of trivial is insignificant, or of no importance.
Conducive to inactivity or indolence:
(Usage Problem) Reluctant; unwilling.
Showing lack of interest or spirit; listless; languid
Requiring much effort or attention:
Making severe demands; rigorous:
Requiring more than is reasonable; demanding; exacting
Hard to lift or move because of great weight; weighty
(Law) Entailing more liabilities than benefits or imposing significant obligations.
Hard to put up with; causing great discomfort or fatigue
Difficult to travel over or through:
The definition of severe is someone or something that is very serious, harsh or critical.
The definition of trying is defined as an irritating person or thing.
Having considerable weight; heavy.
(Of a story) Hard to believe, such as a tall story or a tall tale.
Very busy; industrious
Currently in use or effect:
Find another word for laborious. In this page you can discover 52 synonyms, antonyms, idiomatic expressions, and related words for laborious, like: assiduous, formidable, arduous, diligent, hard, stiff, burdensome, sedulous, toilsome, tough and idle.