arduousar‧du‧ous /ˈɑːdjuəs $ ˈɑːrdʒuəs/ adjective 
the arduous task of loading all the boxes into the vanarduous journey/voyage an arduous journey through the mountains—arduously adverb
WORD ORIGINarduous
Origin:
1500-1600 Latin arduus ‘high, steep, difficult’EXAMPLES FROM OTHER DICTIONARIES
- an arduous trip through the mountains
- In those days, long-distance travel was slow and arduous.
- Today, Corbett will continue his arduous climb to the top of the park's highest peak.
- A walking stick is good for balance in the water and on the arduous grades.
- All diary recording is arduous and this was no exception.
- Niyogi had made the police's work of extortion and intimidation more arduous.
- Ralph read, an arduous process.
- The lives of peasants are dictated by the arduous and endless cycle of their crops.
- The long, arduous journey to Bethlehem could have resulted in a miscarriage or stillbirth.
- The original reason for early retirement was that most military jobs in days gone by were physically arduous.
Longman Language Activatorneeding a lot of energy or physical effort
tiring and needing a lot of work, energy, or physical effort: · Let your mother sit down. She's had a hard day at work.· Their car broke down, and they were suddenly faced with a long hard walk back to the nearest town.
needing a lot of physical effort: · The doctors advised against any strenuous activity for six weeks.· Last season his trainers put him through a strenuous running program.
backbreaking work, especially work that involves carrying and lifting heavy things, is extremely hard and needs a lot of physical effort: · After four hours of backbreaking work, we had finally pulled the wall down.
British /grueling American something that is gruelling is extremely tiring because it continues for a long time and you have to use a lot of effort continuously: · The Le Mans 24-hour race is the most gruelling event in the motor-racing calendar.· Before they join the army, young recruits are put through a particularly grueling endurance course.
written work or a journey that is arduous is long and tiring and needs a lot of strength and effort: · In those days, long-distance travel was slow and arduous.· Today, Corbett will continue his arduous climb to the top of the park's highest peak.
extremely difficult in a way that damages or weakens something or makes someone feel very tired: · The transatlantic flight was a punishing task for the plane's old engines.· He set himself a punishing schedule of talks, lectures and conferences all over America.
spoken use this when something is extremely difficult and needs a lot of effort or skill: · Traveling five days a week is murder. I can't do it anymore.it is murder doing something: · It's murder trying to park in this town!
British informal if something is a slog, it takes a lot of time and effort and is often boring: · He didn't become famous overnight -- it's been a long hard slog.· The first half of the book was quite interesting but the last part was a bit of a slog.
COLLOCATIONS FROM THE ENTRY the arduous task of loading all the boxes into the van an arduous journey through the mountainsCOLLOCATIONS FROM OTHER ENTRIES
involving a lot of strength and effortarduous task/work the arduous task of loading all the boxes into the van an arduous journey through the mountains (=to a place that is difficult to reach)· the arduous journey to the North Pole
(=needing a lot of effort and hard work)· We began the arduous task of carrying the furniture to the top floor.
(=needing a lot of effort)· This was physically arduous work.
COLLOCATIONS FROM THE CORPUSNOUN· The long, arduous journey to Bethlehem could have resulted in a miscarriage or stillbirth.· She was now faced with an arduous journey into a remote country where there might well be anarchy when Menelik died.
· The arduous task of legging through a long tunnel like that under Castle Hill at Dudley could take over 3 hours.· They've already begun the arduous task of carrying their plants half a mile across town to their new home.· We asked her why she has given herself such an arduous task.
· Mrs Layton remembered washing until 4 am when her husband was temporarily unemployed, and this was physically arduous work.· Later, Taylor denied that more arduous work was ever demanded of the men in his shops.
the arduous task of loading all the boxes into the vanarduous journey/voyage an arduous journey through the mountains—arduously adverb