Nearby Words
adjective
1.
requiring great exertion; laborious; difficult: an arduous undertaking.
2.
requiring or using much energy and vigor; strenuous: making an arduous effort.
3.
hard to climb; steep: an arduous path up the hill.
4.
hard to endure; full of hardships; severe: an arduous winter.
Related forms
ar·du·ous·ly, adverb
ar·du·ous·ness, noun
su·per·ar·du·ous, adjective
su·per·ar·du·ous·ly, adverb
su·per·ar·du·ous·ness, noun
EXPANDSynonyms
1. hard, toilsome, onerous, wearisome, burdensome, exhausting.
1. hard, toilsome, onerous, wearisome, burdensome, exhausting.
Antonyms
1. easy.
1. easy.
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2012.
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Based on the Random House Dictionary, © Random House, Inc. 2012.
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Arduousness
is always a great word to know.
So is lollapalooza. Does it mean:
| a calculus or concretion found in the stomach or intestines of certain animals, esp. ruminants, formerly reputed to be an effective remedy for poison. |
| an extraordinary or unusual thing, person, or event; an exceptional example or instance. |
Collins
World English Dictionary
Collins English Dictionary - Complete & Unabridged 10th Edition
2009 © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009
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2009 © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009
Cite This Source
Etymonline
Word Origin & History
arduous
1530s, "high, steep, difficult to climb," from L. arduus "high, steep," from PIE base *eredh- "to grow, high" (see ortho-). Metaphoric extension to "difficult" first attested 1713.
Online Etymology Dictionary, © 2010 Douglas Harper
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