All arduous synonyms
ar·du·ous
A a adj arduous
- uphill — up or as if up the slope of a hill or other incline; upward: The soldiers marched uphill. Water does not run uphill without assistance.
- onerous — burdensome, oppressive, or troublesome; causing hardship: onerous duties.
- trying — extremely annoying, difficult, or the like; straining one's patience and goodwill to the limit: a trying day; a trying experience.
- tough — strong and durable; not easily broken or cut.
- grueling — exhausting; very tiring; arduously severe: the grueling Boston marathon.
- backbreaking — demanding great effort; exhausting
- tiring — Archaic. to dress (the head or hair), especially with a headdress.
- burdensome — If you describe something as burdensome, you mean it is worrying or hard to deal with.
- strenuous — characterized by vigorous exertion, as action, efforts, life, etc.: a strenuous afternoon of hunting.
- formidable — causing fear, apprehension, or dread: a formidable opponent.
- rigorous — characterized by rigor; rigidly severe or harsh, as people, rules, or discipline: rigorous laws.
- troublesome — causing trouble, annoyance, or difficulty; vexatious: a troublesome situation; a troublesome person.
- laborious — requiring much work, exertion, or perseverance: a laborious undertaking.
- painful — affected with, causing, or characterized by pain: a painful wound; a painful night; a painful memory.
- harsh — ungentle and unpleasant in action or effect: harsh treatment; harsh manners.
- heavy — of great weight; hard to lift or carry: a heavy load.
- labored — of or relating to workers, their associations, or working conditions: labor reforms.
- murder — Law. the killing of another human being under conditions specifically covered in law. In the U.S., special statutory definitions include murder committed with malice aforethought, characterized by deliberation or premeditation or occurring during the commission of another serious crime, as robbery or arson (first-degree murder) and murder by intent but without deliberation or premeditation (second-degree murder)
- punishing — causing or characterized by harsh or injurious treatment; severe; brutal: The storm was accompanied by punishing winds.
- rough — having a coarse or uneven surface, as from projections, irregularities, or breaks; not smooth: rough, red hands; a rough road.
- severe — harsh; unnecessarily extreme: severe criticism; severe laws.
- taxing — wearingly burdensome: the day-to-day, taxing duties of a supervisor.
- toilsome — characterized by or involving toil; laborious or fatiguing.
- fatiguing — weariness from bodily or mental exertion.
- no picnic — a hard or disagreeable task
adjective arduous
- difficult — not easily or readily done; requiring much labor, skill, or planning to be performed successfully; hard: a difficult job.
- hard — not soft; solid and firm to the touch; unyielding to pressure and impenetrable or almost impenetrable.
- demanding — A demanding job or task requires a lot of your time, energy, or attention.
- operose — industrious, as a person.
- laboured — productive activity, especially for the sake of economic gain.