'arduous' definitions:
Definition of 'arduous'
(from WordNet)
adjective
Characterized by effort to the point of exhaustion; especially physical effort; "worked their arduous way up the mining valley"; "a grueling campaign"; "hard labor"; "heavy work"; "heavy going"; "spent many laborious hours on the project"; "set a punishing pace" [syn: arduous, backbreaking, grueling, gruelling, hard, heavy, laborious, operose, punishing, toilsome]
adjective
Taxing to the utmost; testing powers of endurance; "his final, straining burst of speed"; "a strenuous task"; "your willingness after these six arduous days to remain here"- F.D.Roosevelt [syn: arduous, straining, strenuous]
adjective
Difficult to accomplish; demanding considerable mental effort and skill; "the arduous work of preparing a dictionary"
Synonyms of 'arduous'
From: Moby Thesaurus
- abrupt,
- abstruse,
- backbreaking,
- brutal,
- burdensome,
- complex,
- critical,
- crushing,
- delicate,
- demanding,
- difficile,
- difficult,
- effortful,
- energetic,
- exacting,
- exhausting,
- fatiguing,
- forced,
- formidable,
- grueling,
- hairy,
- hard,
- heavy,
- hefty,
- Herculean,
- intricate,
- jawbreaking,
- killing,
- knotted,
- knotty,
- labored,
- laborious,
- mean,
- no picnic,
- not easy,
- onerous,
- operose,
- oppressive,
- painful,
- precipitate,
- precipitous,
- punishing,
- rigorous,
- rough,
- rugged,
- set with thorns,
- severe,
- sheer,
- sideling,
- spiny,
- steep,
- stickle,
- strained,
- strenuous,
- taxing,
- thorny,
- ticklish,
- tiring,
- toilsome,
- tough,
- tricksy,
- tricky,
- troublesome,
- trying,
- uphill,
- vigorous,
- wearisome,
- wicked