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Showing results for arduous. Search instead for abwehrduos.
Definitions

arduous

[ahr-joo-uhs, ahr-dyoo-] / ˈɑr dʒu əs, ˈɑr dyu- /
ADJECTIVE
difficult, hard to endure
Synonyms
STRONGEST
backbreaking burdensome exhausting formidable grueling laborious onerous painful rigorous strenuous tiring tough troublesome trying uphill
WEAK
fatiguing harsh heavy labored murder no picnic punishing rough severe taxing toilsome
Antonyms
STRONGEST
easy effortless facile helpful mild nice pleasant trivial weak
WEAK
motivating

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

Acquiring security clearances remained a long and arduous process.

From MarketWatch • Apr. 4, 2026

After an arduous, nearly two month long journey hiking through Thailand, Geumseong eventually made it to Seoul.

From BBC • Mar. 27, 2026

The chef has come a long way since he arrived in London after an arduous journey from Damascus with virtually no money in his pocket.

From Barron's • Mar. 2, 2026

Meals feel less like a relaxing reprieve after long, arduous missions and more like a tension-filled calm before a storm you’re 100% certain is coming — and may very well take you with it.

From Salon • Feb. 28, 2026

Then began the arduous work of raising the cellblock.

From "Newjack: Guarding Sing Sing" by Ted Conover

From Roget's 21st Century Thesaurus, Third Edition Copyright © 2013 by the Philip Lief Group.