arduous
[ ahr-joo-uhs or, especially British, ahr-dyoo- ]
/ ˈɑr dʒu əs or, especially British, ˈɑr dyu- /
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adjective
requiring great exertion; laborious; difficult: an arduous undertaking.
requiring or using much energy and vigor; strenuous: making an arduous effort.
hard to climb; steep: an arduous path up the hill.
hard to endure; full of hardships; severe: an arduous winter.
OTHER WORDS FOR arduous
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Origin of arduous
1530–40; <Latin arduus erect, steep, laborious; see -ous
OTHER WORDS FROM arduous
Dictionary.com Unabridged
Based on the Random House Unabridged Dictionary, © Random House, Inc. 2021
How to use arduous in a sentence
British Dictionary definitions for arduous
arduous
/ (ˈɑːdjʊəs) /
adjective
requiring great physical or mental effort; difficult to accomplish; strenuous
hard to endure; harsharduous conditions
hard to overcome or surmount; steep or difficultan arduous track
Derived forms of arduous
arduously, adverbarduousness, nounWord Origin for arduous
C16: from Latin arduus steep, difficult
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
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