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Arduous

7 lettersadjectivemoderate

Updated June 2026

Definition

Requiring great physical or mental effort and causing weariness close to exhaustion.

The arduous climb to the summit took the team nearly twelve hours.

Pronunciation

IPA

/ˈɑːdjuːəs/

Syllables

ar·du·ous

Related Words

Synonyms

backbreakinggruelinggruellinghardheavylaboriousoperosepunishing

Antonyms

easyeffortless

Word Game Tips

🟩

Wordle

Three vowels A, U, O spread across 7 letters and the -OUS ending is a useful pattern to remember

🔤

Scrabble

Scores 8 points base with no high-value tiles, but the -OUS suffix hooks efficiently onto many roots

Words Related to Arduous

Words you can make from Arduous

Shorter words formed from the letters in “arduous”.

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Dictionary References

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