arduous
American Heritage Dictionary:
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ar·du·ous
(är'jū-əs) 
adj.
arduousness ar'du·ous·ness n.
adj.
- Demanding great effort or labor; difficult: "the arduous work of preparing a Dictionary of the English Language" (Thomas Macaulay).
- Testing severely the powers of endurance; strenuous: a long, arduous, and exhausting war.
- Hard to traverse, climb, or surmount. See synonyms at burdensome, hard.
[From Latin arduus, high, steep.]
arduously ar'du·ous·ly adv.arduousness ar'du·ous·ness n.
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arduous
Roget's Thesaurus:
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arduous
adjective
- Not easy to do, achieve, or master: difficult, hard, laborious, serious, tall, tough, uphill. See easy/hard.
- Requiring great or extreme bodily, mental, or spiritual strength: backbreaking, burdensome, demanding, difficult, effortful, exacting, exigent, formidable, hard, heavy, laborious, onerous, oppressive, rigorous, rough, severe, taxing, tough, trying, weighty. See heavy/light.
Antonyms by Answers.com:
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arduous
adj
Definition: difficult, hard to endure
Antonyms: easy, facile, motivating
Word Tutor:
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arduous
IN BRIEF: Very difficult; hard.
Clearing the pasture was arduous work.
LearnThatWord.com is a free vocabulary and spelling program where you only pay for results!
See crossword solutions for the clue Translations:
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Arduous
Dansk (Danish)
adj. - anstrengende, besværlig, krævende, slidsom
Nederlands (Dutch)
moeizaam, energiek
Français (French)
adj. - ardu, difficile, laborieux, raide (un chemin), escarpé
Deutsch (German)
adj. - beschwerlich
Ελληνική (Greek)
adj. - επίπονος, κοπιώδης, τραχύς
Português (Portuguese)
adj. - árduo, laborioso, penoso
Русский (Russian)
трудный, напряженный, энергичный
Español (Spanish)
adj. - difícil, arduo
Svenska (Swedish)
adj. - mödosam, ansträngande, brant
中文（简体）(Chinese (Simplified))
艰巨的, 困难的, 费力的, 努力的
中文（繁體）(Chinese (Traditional))
adj. - 艱巨的, 困難的, 費力的, 努力的
한국어 (Korean)
adj. - 험난한, 끈기 있는
日本語 (Japanese)
adj. - 困難な, 骨の折れる, 刻苦精励の, 根気強い
العربيه (Arabic)
(صفه) شاق, جهيد, شديد الإنحدار
עברית (Hebrew)
adj. - קשה, מפרך
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American Heritage Dictionary
The American Heritage® Dictionary of the English Language, Fourth Edition Copyright © 2007, 2000 by Houghton Mifflin Company. Updated in 2009. Published by Houghton Mifflin Company. All rights reserved.
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Roget's Thesaurus
Roget's II: The New Thesaurus, Third Edition by the Editors of the American Heritage® Dictionary Copyright © 1995 byHoughton Mifflin Company. Published by Houghton Mifflin Company. All rights reserved.
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HarperCollins Publishers
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